Do you know how to the scientific use of fuel additives

How to use the fuel additive to work better? Many intend to use additives owners are still hesitant, because we are not consistent with the view of additives, additives to buy more trouble. There is another kind of circumstance, a lot of people who have buy good fuel additive products but do not know how to use, also do not know how to use the OBD Diagnostic Tool check, that will also affect the fuel additive role play. Here we ask the repair shop of professional technicians explain to us the proper use of fuel additives.

For a long time the car must use, if don't want to continuous use can also between a month with more than three times, if intervals recommended dose it slightly larger, truly effective removal of carbon deposition, improve the fuel environment. The use of the most economical method is used for the first time the way plus three times in a row, that is a new car in the first three tank, every time, in accordance with the purchase of the directions specify the percentage of adding additives. After three times, run about 3000 km to 3000 km (is different according to different road conditions and oil), again plus three times in a row, repeat this cycle is more appropriate, you can use a Launch X431 V Pro or Launch X431 Diagun III tools to check the performance of the car, you can see the obvious transformation.

For used cars, during the initial period, the additive will engine oil system in the gum or sediment washing down, it will lead to clogged filters and oil hole, this time to deal with the oil system, a cleaning and maintenance, and then follow the new car Add mode to continue to use, so purifying effect is more ideal.

Adding proportion is 1: 1000, 50ml bottles of additives can be with 50 liters of fuel; in addition, add should as the condition, models and and vehicle vehicle condition is good for the first time for about 3 bottles; condition decreased, underpowered vehicles need continuous use more than 5 bottles until the condition improved. Then choose the next box to add one or 1000 kilometers every time to add. If the engine is in good condition, it can be used to reduce the proportion of the mixture.

To remind you, as the market chaos, consumers should choose a well-known brand certified, select Do not freeloaders, should pay attention to product quality, the company strength, service assurance and brand reputation, should choose to clean the engine and hydraulic system and other conservation tools Comprehensive features well-known brands. We recommend car stick with fuel additives, keeping nozzle without clogging, no coke combustion exhaust standards; with higher mileage cars, to select super-concentrated high-quality products, and gradually clean the oil and the engine, to clean, lubricate, by Horsepower easy start effect, you can also use Autel MaxiDas DS708 or Xtool PS2 tool to check car, you will reconsider whether or not to use fuel additives.
Source: http://www.focalobd.com/blog/do-you-know-how-to-the-scientific-use-of-fuel-additives/

Brake fluid selection and usage guide

Automotive brake fluid is what we usually say brake fluid. Brake fluid is auto transmission brake pressure in hydraulic system of a liquid medium. Brake fluid when the choose and buy, the higher the level of the brake fluid, is better. So if the quality of the brake fluid problems, what consequence can you produce? Such as brake failure, etc. But people often ignore the inspection and replacement of the brake fluid, so it is necessary to regularly use the OBD Diagnostic Tool to check the brake fluid.

When long-distance driving, the engine is in operation for a long time, or in the summer temperatures are high, these will be used to increase the temperature of the brake system. If you are using low boiling point of the brake fluid evaporation will make brake system steam pipe filled with steam, produce gas resistance, thereby blocking the brake fluid diversion pipe, it can cause brake failure phenomenon, so you need to use Launch X431 V Pro or Launch X431 Diagun III tools to check the car's performance. So the good quality of the boiling point of the brake fluid is relatively high, so the brake fluid and good abrasion resistance and liquidity and the viscosity is moderate.

As long as we open the hood, you will find there are a milky white jar, that is used to hold the brake fluid place, you can see the inside of the brake fluid, outside marked with upper and lower limits of the scale, if the liquid level in its it shows the range of the normal amount of brake fluid. If you want to add brake fluid, it is necessary to add the same level now use the same brand of the same quality brake fluid, otherwise it will layer because of different formula or produce chemical change, influence the reliability of the brake fluid, reduce the braking effect.

So you must be pay more attention to the use of the brake fluid, brake fluid generally use 1-2 years later will replace, if you don't know what time replace, you can use the Autel MaxiSys Pro MS908P or Xtool PS2 tool inspection. Brake fluid when the choose and buy, in order to avoid buy the fake and shoddy products, you'd better choose in some famous brand of brake fluid, even the after-sales service is also very perfect.
Source: http://www.focalobd.com/blog/brake-fluid-selection-and-usage-guide/

How to maintain the car battery in summer

Summer car battery maintenance is regularly use OBD Diagnostic Tool inspection maintenance, trailer coupling corroded battery case must be promptly treated to eliminate hidden dangers.

The heat of summer, the car in high temperature and under the hot sun, there will be a series of problems caused by high temperature and failure, often seen in the case of fire, causing casualties. Vehicle in the sun for a long time, the temperature inside the car sharply increased. It has been shown that when the outdoor temperature in 36 degrees Celsius, the car as long as two hours of exposure to the sun, the car will increase to 68 degrees Celsius temperature. It can be imagined, without the use of the Launch X431 IV GX4 Master or Launch X431 Diagun III tool to check the battery, in this environment is easy to short-circuit and spontaneous combustion.

How do the clean-up battery: lead to car battery pile head corrosion reason is battery liquid sulfuric acid. When the engine, generator will recharge the battery, the battery will produce hydrogen bubble, some acid composition will be followed by a hydrogen discharge battery, especially in charging system, such as the generator voltage is too high or charging without restraint, leads to charge excessive and so on, it will lead to a lot of sulfuric acid components into the battery on the panel to, then the two pile head will corrosion.

In addition, when the daily driving, before leaving the car, check to make sure that all lights and other electrical vehicle (such as radios, CD) has been shut down because of a long parking time will run out of battery power. Car battery to regular maintenance, carefully check the battery bolts through the vent plug, the battery will produce a large number of hydrogen, oxygen gas, once the exhaust valve failure or blockage, the pressure is too large, may cause explosion.

To avoid sparks, the pile head before the demolition of the battery, to all automotive electrical and ignition turned off, then use Autel MaxiSys MS908 or Xtool PS2 tool to check, and must remove the negative pole first, then remove the positive pole. In the back of the pile head, the positive electrode and the negative electrode. In addition, if you are not sure, it is best to consult the original operation of the factory in the process of safety precautions.
Source: http://www.focalobd.com/blog/how-to-maintain-the-car-battery-in-summer/

Brake system maintenance Note

First: high temperature protection of brake pads
Prevent the brake system corrosion, prevent the brake disc from high temperature surface card die, eliminate the brake piece of screaming, maintain good lubrication lasting, need to be resistant to high temperature up to 1400C above the ceramic component products. Therefore, to regularly using the OBD Diagnostic Tool check the thickness of the brake pads or brake shoe. In the normal driving situation, the front brake of the brake pad life is 50000 - 30000 kilometers, the service life of the brake pad is 150000 - 120000 km. Once the brake wear to the limit should be replaced in a timely manner.

Second: brake wheel cylinder lubrication and maintenance
Lubrication of brake wheel cylinder shaft and cup, keep the wheel cylinder liner soft, extend the service life of the pump, need to use fully synthetic brake wheel cylinder lubricating oil.

Third: Clean brakes
Quick cleaning brakes, brake drums and any parts of grease, dirt and friction dust, keeping the brakes heat dissipation; eliminate harsh noise brakes, promote uniform brakes, use Launch X431 IV GX4 Master or Launch X431 Diagun III tool to check the brake system.

Fourth: brake oil change
Brake oil has water absorption characteristics, long time no replacement will corrode the brake system for traffic and security. It recommends that owners generally, to replace a brake fluid every 20,000 km. Mainly to ensure the cleanliness of the brake fluid.

Fifth: tire screw, brake disc and ring contact surface rust lubrication
To prevent corrosion and prevention screw and surface heating stuck, convenient disassembly, high temperature of above 1100c aluminum product ingredients, to guarantee and the brake contact area and improve the braking force, the need for regular use of Autel MaxiSys Mini MS905 or Autel MaxiDas DS708 tools to detect the brake system performance.
Source: http://www.focalobd.com/blog/brake-system-maintenance-note/

Buy second-hand car need to pay attention to matters

Friends often say, want to buy a used car, but do not know how to choose, do not know what to pay attention, although used car can save a lot of money, but if you buy a lot wrong with the car, not worthwhile. Have this concern is not unexpected, can not just look at the appearance and to decision, you need to use the Auto Diagnostic Tool to check the performance of the car.

Sellers To make cars look more beautiful, will advance to the car beauty and let the car looks clean, almost like new. Care of the first impression, this car certainly will leave a deep impression. Do not know the surface of cooked glamorous car, in fact there are many problems, maybe a car accident. So in the purchase of second-hand car, do not be confused by the appearance of the car.

Buy big brands of cars, that new car prices are too high, wanted to buy a used car, but luxury cars follow-up care is very troublesome, generally small repair shop can not to repair, furthermore the price is also very expensive, as well as maintenance costs, maintenance costs, might be able to buy a nice new car. In fact, more popular models and brands are the best to take care of, where can go where maintenance, cost is also reasonable, they can even use the Launch X431 IV GX4 Master or Launch X431 Diagun III tool maintenance.

Many people buy a used car through a friend, first of all is a friend and not as embarrassed openings at bargain prices, view vehicle formalities are complete, a contract's time to take a closer look, these are designed to ensure their own interests.

Cars are not consumer goods, with more or less a long time there will be some problems, so use Autel MaxiSys MS908 or Xtool PS2 tools check the condition is necessary. Check whether the body has a collision, the chassis is damaged, the exhaust pipe is rusty, as well as the engine, gearbox, water tank is leaking, seepage. The most important is the engine, the engine is the heart of the car, so should pay special attention, in addition to see the engine's appearance is dry, exhaust pipe is sealed, but also to start the car, listen to the sound of the engine is normal.
Source: http://www.focalobd.com/blog/buy-second-hand-car-need-to-pay-attention-to-matters/

Car burning oil reason and solutions

The engine is the heart of the vehicle must be protected. The quality of the oil not only can reduce engine wear, increase engine efficiency, by OBD Diagnostic Tool to detect, but also to save fuel consumption, extended drain intervals and help keep the engine clean and prolong engine life, long-term performance of the engine as new.

There are three cases car burning oil
1, the valve seal leakage at the oil, because the poor quality of the valve seal, or the engine temperature is high, or exhaust vent is blocked leading to the greater impact of the valve seal.

2, Crankshaft ventilation mechanism can not be filtered out of the oil, leading to oil is sucked into the inlet, the only use Launch X431 V Pro or Launch X431 Diagun III tools to detect oil filter components, to eliminate failures or improve efficiency.

3, From piston engine oil leakage, for this performance, throttle only exhaust side have the carbon deposition, but the most damage, the main reason is lack of the inferior quality or process precision of piston and piston ring, under the turbine, the piston ring of gas oil energy is larger, the destructive force of the piston ring of piston is bigger, more heavy oil burning.

Overall, the engine burning oil to avoid is the use of qualified and suitable lubricants, and changed regularly. But note that the different cars engine design, therefore, in view of the model in different countries, the cost of repair and repair after the effect of the difference is very big. Universal significance and practical advice is to use good oil and regularly replaced.

Some burning oil was designed to be, this is actually the main part of the current owners complaints: obviously the vehicle does not have any fault, but the oil consumption is particularly large. So for the engine easy to have a fever, usually to use the Autel MaxiDiag Elite MD802 or Autel MaxiSys Mini MS905 tool to check the work condition, the regular check the oil consumption is normal, etc..
Source: http://www.focalobd.com/blog/car-burning-oil-reason-and-solutions/

Five major signs of tyre failure

When driving the tires have to withstand the pressure from the road surface. Tire wear occurs often does not mean your driving habits problems exist, but this kind of phenomenon but a normal driving inevitable fact, tire wear will gradually aging, and ultimately lose grip. If the vehicle during tire fails, the consequences would be disastrous. When you use Auto Diagnostic Tool to check his car tire whether is deformed or performance degradation of the situation, you can replace them with new tires and avoid failure. Here we will give five warning signal, tip you have the time to change the tire.

1. The tire tread depth
The thickness of the tread must be greater than 1.6 mm, if you often driving on slippery roads on low friction, it is best to ensure the tread thickness is twice the above values. You can purchase a meter to measure the thickness of the tread pattern.

2. tread wear indicator lines
The new tyres have more than one human nature design in the past: tread wear indicator. When the tire is very new or very low degree of wear, these indicator line hardly be found, but to reach a certain degree of wear of the tread these hidden ravine in the line indicated on the show out. Tread wear indicator line is flat rubber with tread longitudinal vertical embedded in the tread ravine. When you use the Launch X431 V+ Pro3 or Launch X431 Diagun III tool to check tire found one to two lines indicating the time, indicating that the tread thickness has been reduced a lot, in this case driving on slippery surfaces should be careful of. If almost all instruction lines are clearly visible on the tire, which means you need to replace the tires as soon as possible.

3. The tire sidewall cracks
The problems on the tyres are not all focused on the tread, and there will be some problems with the tire sidewall. By observing the tire sidewall to find those directly visible to the naked eye crack and cut. These tiny grooves on the tire indicates future cracks leak may occur, and worse even trigger a tyre blowout, the faulty tyres are we strongly want to avoid. So on the tire sidewall crack looks serious, or the cars to a garage as soon as possible replacement tires.

4. Bulge and blistering on tire
In some cases, the outer surface of the tire because of insufficient strength, resulting in higher than normal tire surface projections and foaming. If you failed to timely detection of the vehicle to the repair plant tire failure, intensity of tire surface area is likely to cause sudden burst, high-speed tire blowout even lead to ride under the personnel serious injuries.

5. Excessive vibration and jitter
Vehicle front row during a certain amount of jitter is inevitable, especially in the conditions of poor road conditions. When you already have some driving experience, you can judge for themselves what kind of feelings within reasonable limits of jitter and jitter illustrate how faulty vehicles. Many vehicle shake incentives may exist or the uneven tire axial displacement, it may be a shock absorber problem. But jitter may indicate some problems with the tire inside; even if the tires are not the root cause of the vehicle wobbled also damage the performance of the tire, causing the tire problem shortly afterwards. So if your car there are more serious jitter, jitter appear on the roads especially good roads, once the vehicle to the repair shop use Autel MaxiScan JP701 or XTOOL VAG401 tool check it. Always bear in mind, a greater degree of jitter is often a harbinger of vehicle breakdowns.
Source: http://www.focalobd.com/blog/five-major-signs-of-tyre-failure/

Oil tank filled full oil has four big taboo

Many owners like to say fill full when fill oil, usually come added to jump the gun, always want to continue oil into the tank, in order to scrape together a integer. Do you know? Through Auto Diagnostic Tool check data show that gas tank is too full can damage the car, and there are serious damage, there are four points of damage:

1, easy to cause fire
If you add too full of oil, oil is easy to overflow from the tank vent. A waste of gasoline, in case of spilled gasoline encounter fire, it is easy to fire, threatening the safety of life!

2, easily cause clogging of the vent
Once the vent plug, it will generate a negative pressure within the fuel tank, causing oil to poor, even for non-oiled. Car situation appears just after the addition was complete oil beat the fire engine, or a jump a jump phenomenon at high speeds, it is possible that due to the gas tank too full due.

3, canister constitute a hazard
Into the carbon canister is a liquid rather than a gas vapor, carbon canister would constitute a hazard. The canister is to reduce vehicle fuel tank, carburetor gasoline evaporation apparatus matter emissions. Through the Launch X431 V Pro or Launch X431 Diagun III tool check normal carbon tank should be above 50000 km, but after the immersion, immediately scrapped!

4, volatile gasoline easy carcinogenic
The activated carbon canister, generally near the outer circulation air inlet, when the oil is too full, canister saturation, pressure too high and pressure relief exhaust, containing gasoline constituents of air into the compartment, uncomfortable "gasoline" always around you. Oil and gas components have been confirmed to contain benzene and other carcinogens, if every time so that the car refueling, through Autel MaxiSys MS908 or Autel MaxiDas DS708 tool checks show will increase the risk of cancer.
Source: http://www.focalobd.com/blog/oil-tank-filled-full-oil-has-four-big-taboo/

Timely attention to automotive air filter maintenance

Replace "three filter" according to the use of the car, maintenance and oil quality grade circumstances, automotive air filter equivalent to the human nose, the air entering the engine to go through the first hurdle, Filter the air through the blocking effect of filter paper. When the dust of the filter paper surface of the pores, it will cause blockage, which directly affect the car's engine, unimaginable consequences occur. Because the air filter and direct contact with the outside world, so it is easy to be blocked, through Auto Diagnostic Tool check found engine will accelerate the powerless and idle instability, and other symptoms, the normal work of the air filter can avoid premature engine wear and maintain the best working condition.

The density of the atmosphere contains three different basic particle contaminants that dust, debris and soot. Open highway dust content is low, but emissions from vehicles concentrated, so that the content of carbon particles in the air is significantly higher, and therefore frequently used Launch X431 IV GX4 Master or Launch X431 Diagun III tool to check the air filter. The dust concentration in the larger areas such as construction sites, sand area, air filter inspection and replacement frequency to be higher. Also now the majority of automotive air filter is made of paper, when the damp air filter, intake blocked, weak acceleration of the vehicle becomes more serious when the water is drawn into the interior of the engine into the cylinder, since water is incompressible, seriously damaged will cause the engine internal moving parts, engine even scrapped.

Few people noticed it, but auto parts Once the problem occurs, the result is the most serious threats to travel safety, not because these small parts and components affecting the active force of the car, so regular use Autel MaxiSys Mini MS905 or Autel Maxidiag Elite MD701 tool to check car engine working conditions.
Source: http://www.focalobd.com/blog/timely-attention-to-automotive-air-filter-maintenance/

Maintenance and inspection method of automobile shock absorber

Automotive shock absorber is used to suppress the shock of spring when the shock and the impact from the pavement. The spring can be used to filter the vibration of the pavement, but the spring itself will have a reciprocating motion, and the shock absorber is used to suppress the spring jump. Through Auto Diagnostic Tool checking, the shock absorber is too soft, the body will be jumping up and down, shock absorber is too hard will bring too much resistance, interfere with the normal work of the shock absorber. Teach you how to maintain the working effect of shock absorber and how to check it.

1, Oil seal gasket, sealing gasket rupture damage, storage cylinder cover nut loose. May be oil seal, seal gasket damage, should be replaced with new seals. If you still can not eliminate oil leakage, should pull out spring strut, if feel the card or not at that time, light and heavy, then, using the gap between Launch X431 V Pro or Launch X431 Diagun III tool to check the piston and cylinder is too large, shock absorber piston connecting rod for bending, the piston connecting rod surface and the cylinder have scratches or marks.

2, Press firmly on the bumper, then release, if the car has 2 or 3 times to jump, then the shock absorber works well.

3, when the car slowly driving and emergency braking, if the car more intense vibration, there is something wrong with the shock absorber.

4, Remove the shock absorber to its upright, and the lower end of the connecting ring folder on the vise, pull compression damping lever several times, then there should be a stable resistance, pull up resistance should be greater than pressed down resistance, such as resistance to unstable or no resistance may be internal shock absorber valve parts lacking fuel or damage should be repaired or replaced.

5, in determining the shock absorber problem or failure, should first check the shock absorber for leaks or traces of old oil spills.

6, To make the car drive 10km on the poor condition of roads on the road parking, touch the shock absorber shell, if not very hot, no resistance in the shock absorber, shock absorber does not work. At this point, can be added to the appropriate lubricating oil, and then test, if the shell fever, for the shock absorber internal lack of oil, should refuel; otherwise, the shock absorber failure.

7, if the damper does not leak phenomenon, should check the shock absorber connection pin, connecting rod, connecting hole, rubber bushings and other damage, sealing off, break or fall off place. If these were normal, should be further decomposed shock absorbers, check with the gap between the piston and cylinder is too large cylinder with or without injury, the valve seal is good, the valves and valve seat are tight fitting and Save Dilatation shock absorber spring is too soft or broken, take grinding to repair or replace parts of the approach according to the situation.

8, In addition, shock absorber in actual use will rattle the fault, which is mainly due to the shock absorber and the steel plate spring and frame or shaft of the collision, the rubber pad damage or loss and damper dust-proof cylinder deformation, caused by insufficient oil should be to identify the reasons, to be repaired.

9, shock absorbers after the inspection, repair should be in a special test stand performance test, when the resistance frequency at 100 ± 1mm, which stretch stroke and stroke compression resistance should meet the requirements, showed normal shock absorber.

I suggest that you use by bumper way to check on how the working conditions of the shock absorber. Because this approach is simple and relatively less time-consuming, but also very intuitive and accurate test results. You should regularly check the shock absorbers have no oil leakage, and if there is leakage oil will affect its work, should go to 4S shop use professional Autel MaxiSys Pro MS908P or Autel MaxiSys Mini MS905 tools for maintenance.
Source: http://www.focalobd.com/blog/maintenance-and-inspection-method-of-automobile-shock-absorber/

Why the car circuit system will catch fire

Automobile circuit usually have starting circuit, power supply circuit, lighting and light signalling device circuit, ignition circuit, auxiliary circuit device, electronic control system circuit, instrument information system circuit composition. So many friends in the process of driving the car will be found auto electrical systems fire, when people are very anxious, do not know what is going on. So today we analyze why the car circuit system catch fire, of course, need professional OBD Diagnostic Tool to be checked.

Among the car ignition accident, car circuit fire occupy a large proportion of spontaneous event. This circuit is aging and the car circuit load is too high is the reason. First, since the engine work, the ignition coil high temperature, easy to make high-voltage ignition wire insulation softening, aging, crack damage, ignition high-voltage insulation breakdown easily produce high-voltage leakage, short circuit leading to spontaneous combustion ; second, the car has a growing number of electronic control technology, intelligent vehicle widely used, Launch X431 Diagun III or Launch X431 Creader VII+ tools to detect data show a substantial increase in the power consumption of automotive electronics accordingly. Auto electrical systems on limited load space, automotive microcomputer, electronic components, various sensors circuit systems are likely to cause damage, since a large number of cars increase the variety of additional electronic equipment, may also increase the burden on car circuit, causing spontaneous combustion fire.

Car circuit maintenance is very important, a lot of the cause of fire is circuit aging, many friends think now car maintenance is the car's appearance maintenance, do essential for the maintenance car circuit, you can also use Autel MaxiSys Mini MS905 or Autel MaxiSys MS908 tool regular inspection car circuit to ensure the safety car circuit.
Source: http://www.focalobd.com/blog/why-the-car-circuit-system-will-catch-fire/

Air filter and car battery maintenance guide

Everybody for car batteries and air filter should be familiar with. So we usually listen to music while driving in the open air or blowing cold air, which must support the job by a car battery. And if the battery is no electricity or damage, the car is unable to start, so the need for regular use Auto Diagnostic Tool to check the vehicle battery. Then the air filter plays a filtered air entering the engine, to provide clean air for the engine, reducing engine running wear. Today we take a look at the two components of the maintenance guide.

Car battery:
General, automotive battery life is two years. Some owners usually well maintained, can extend this use time. If maintenance do not get bit, less than two years to be replaced. If the battery has been aging and not timely replaced, repeated charging and discharging can damage the internal battery plates and an electrolyte. through Launch X431 Diagun III or Launch X431 V+ Pro3 tool check data show that: the battery capacity will be reduced and eventually run out of power, the engine can not be started.

Air filter:
General car mileage of forty thousand kilometers or two years can be considered to replace the air filter. If it often in some dusty environment, the replacement cycle would go ahead of some. If no timely replacement of the air filter, increases mileage and filter clogging. And reducing engine power, accelerate the ability to reduce, reduce fuel economy, cylinder due to dirt and damage, air supply is insufficient.

So now we should all know the importance of car batteries and the air filter. Just remember that your battery and air filter coming two year when we should use Autel MaxiSys Pro MS908P or Autel MaxiDas DS708 tool to check usage, it should be replaced. Usually in the car maintenance cycle time, we must check the battery and air filter, if there is a serious aging, damaged the situation, it should be replaced.
Source: http://www.focalobd.com/blog/air-filter-and-car-battery-maintenance-guide/

Lubricating oil color black need to be replaced immediately?

Many drivers see lubricant color black, they think oil quality has been a serious deterioration, and replace it, resulting in waste. Normally, car oil at just replaced, color is golden yellow, are generally will added clean dispersant, the purpose is to wash the adhesion and black carbon deposition film on the piston down and dispersed in oil, reduce engine generate high temperature deposits, so the use of lubricants colors tend to darken after a period of time, but this time the oil does not deteriorate, the use of oil is serious deterioration, needs to be replaced by the Auto Diagnostic Tool can determine whether the need to replace, is not observed the oil color black, concludes that need to be replaced lubricant.

Under normal circumstances, regardless of any brand of lubricating, its life cycle can be maintained at more than 5,000 km, to the 8000 km -10 000 kilometers need to replace oil. Only when the long-term bad driving habits, such as frequent Jicha, refueling too fast, the speed at 3000 rpm or more frequently, oil change intervals will advance.

After a period of time, engine oil the color will gradually darken, why lubricant color will change to black?
First, the fuel in the olefin content, sulfur content is high (gasoline engine is easy to form sludge, diesel engines easy to form smoke stains), easy to make the engine oil black, and thus fuel quality is the source of oil black.

Second, the different structure and working conditions of the engine, it is easy to make gasoline engine oil sludge generated, form smoke stains incomplete combustion of diesel engine, thus lubricant turning black, you can use a Launch X431 V Pro or Launch X431 Diagun III tools to check these phenomena.

Third, In order to overcome the fuel and mechanically induced results, lubricating oil to adding dispersant to prevent sludge or smoke stains on the cylinder formation deposited in the film or the body, the higher the quality of the oil, dispersed better, but oil is volatile black, so high quality oil, than the poor oil variable black faster.

Fourth, Oil color black produced sludge is related to launch a pilot time overly high temperature operation, and not to clean the engine when the car in the oil and oil bottom, associated with the filterability of oil filter.

Engine oil replacement time, premature cause lubricating oil waste, too late will increase engine wear and shorten engine life and maintenance cycle, so you need to use Autel MaxiSys Pro MS908P or Autel MaxiDas DS708 tool to check the engine. The deterioration degree of lubricant has relationship with the performance of automobile, repair technology, driving level, road and weather condition, lubricant quality, etc, uniform regulations drain intervals sometimes not entirely realistic. If after a period of use of lubricants appear dimmed color, white, indicating filling oil mixed with water, which emulsion occurs. The basic properties of lubricants has been completely lost, the engine cooling system and combustion system for leaks, should not continue to use.
Source: http://www.focalobd.com/blog/lubricating-oil-color-black-need-to-be-replaced-immediately/

Steyr 91 series heavy duty truck air filter maintenance guide

Steyr 91 series heavy-duty truck engine adopts a dry air filter. Hyundai increased use of paper air filter, high efficiency air filter paper, Auto Diagnostic Tool test data shows that only 0.1% to 0.3% transmittance of dust. Use paper air filter can reduce wear of the cylinder and piston, extending engine life. Should be used with care and attention to the following points:

(1) Master the characteristics of wd615 engine paper filter and cleaning method
This air filter, the outer filter element is treated with microporous filter paper, and the surface is treated by resin.. In the engine operation, the air filter through the microporous filter to the dust, ensure clean air into the turbocharger and then into the cylinder. Senior internal filter made of felt, a safety cartridge. In use, the filter will pick up around the outer layer of dust. Clean the air filter outside filter, not used water, oil, should prevent oil dip filter; commonly used method is to gently pat. Specifically: gently tap on the tire, beat the dust out, and then dried 0.4mpa the following air purge. When the purge should be blown inside out.

(2) Regular cleaning and replacement of filters
In Steyr 91 series of heavy-duty vehicles so that there shall maintain provisions for periodic air filter cleaning and replacement, in order to avoid excessive dust adhered to the filter, causing the intake resistance increases, reducing engine power and increased fuel consumption. Cars with 2000 ~ 4000km, air filter (inside and outside) clean, replace the filter at the outer 12000km, Launch X-431 PAD or Launch X431 Diagun III tool checks show that: in the best six months to replace the filter. If the filter is damaged should be replaced promptly.

(3) Installed correctly
In the inspection and maintenance of air filters, the seal on the filter pad must be installed well. Rubber gaskets easy to aging and deformation, the air is easy to flow through the gap from the seal, the dust into the cylinder. If the gasket aging, the best replacement of the air filter. External filter meshes such as rupture or the upper and lower end caps glued joints cracked should be replaced.

Dry air filter is passed through a dry filter, such as paper filter, the air impurities in the filter. Light vehicles (including cars, mini-cars) is generally used as a single-stage air filter. Its oval or elliptical shape and flatbed. The filter material is filter paper or nonwoven fabric. Filter cover with metal or polyurethane, the shell material is a metal or plastic. At rated air volume flow, original filtration efficiency filter should not be less than 99.5%.

Heavy duty vehicle due to poor working conditions, it must be more than one air filter. The first stage cyclone pre-filter (such as a blade ring, swirl tubes, etc.), used to filter impurities coarse particles, filtration efficiency above 80%, the second stage fine filter is a porous paper filter (commonly referred to as primary filter), the filtration efficiency of 99.5%. after the main filter element and a security filter, its role is in the installation and replacement of the main filter element, or in the main filter accidental damage, to prevent dust from entering the engine, you can regularly for the use of Xtool PS2 or Autel Maxidiag Elite MD703 tools to check the engine performance, the core material more secure non-woven fabric, but also the use of filter paper.
Source: http://www.focalobd.com/blog/steyr-91-series-heavy-duty-truck-air-filter-maintenance-guide/

How to correct replace fuel filter

Fuel filter is contained in the fuel in the iron oxide, dust and other solid impurities removed, to prevent clogging of the fuel system, reduce mechanical wear and ensure stable operation of the engine, and improve reliability. Fuel filter is a fine part, in use for some time, use the Auto Diagnostic Tool to check the fuel filter performance, if the fault code is 00538, need to replace the fuel filter. Method is as follows:

First, loosen the clamping device at the junction of the oil and fuel filter, then removed fuel filter from the oil passage, followed by a stopper oil passage, so you can prevent fuel spillage. Most of the oil installation in the fuel filter is marked with two arrows, one is the fuel flowing into the arrow, and the other is the fuel outflow arrows, with arrows to indicate the flow of fuel through the fuel filter when. So when we installed the fuel filter, be sure to make the arrow pointing the direction of the engine, that the engine oil is flowing.

In addition, it should be noted that the clamping device in the circuit used is specially designed, rubber hoses and fuel filter in the junction of these two components tightly clamped to achieve sealing effect. Compared with the ordinary clamping device, this device does not cut into the rubber hose, and therefore does not cause damage to the rubber hose, and this clamping device can withstand high oil pressure. In contrast, the ordinary worm type clamping device more easily damage rubber hose caused fuel leakage. Finally, we should also ensure that the rubber hose clamp device is installed in the correct position and in accordance with the specified specifications of the clamping joint.

If the vehicle is without the need to maintain the fuel system, and only use a built-in to the fuel filter, then in vehicle periodic preventive maintenance process, it is not possible to the oil pump, a filter and a fuel output device all replaced, even automotive preventive maintenance interval is long, it is impossible to do that, because of the high cost of doing. But if you use Launch X431 V+ Pro3 or Launch X431 Diagun III tools to check the. It is found that the anomaly of the working performance of the engine, the fuel pressure and fuel system in the critical value, replace the fuel filter placed inside the tank is very necessary.

When using this lute-shaped coupling member also noted that during the installation process must not make the wrong buckle connecting thread situation appears, it should not be applied in large part on the binding of clamping force. Do not use RTV or other types of seals on these lute-shaped coupling member. When installing the coupling member, use wrench to ensure proper clamping force.

After completion of maintenance work on the fuel filter, put all the parts are assembled, replace the fuel pump fuse, and then, in the case of the ignition system does not work, the engine is rotated several turns, until the establishment of the fuel system far from normal when the fuel pressure. At this point, you should check the fuel filter and oil line for leaks. If Autel MaxiScan JP701 or Autel MaxiDas DS708 tool test results show that everything is normal, start the engine run a few minutes, and then re-check again to make sure there are no leaks happen.
Source: http://www.focalobd.com/blog/how-to-correct-replace-fuel-filter/

Honda car air conditioning refrigeration malfunction maintenance

Honda automobile air conditioning refrigeration failure phenomenon. After filling refrigerant. Open air conditioning, on the electromagnetic clutch compressor suction no, idle speed is high and low (850 r/min to 1100 r/min), the fan rotation is normal, but poor refrigeration, you can see the real-time data by OBD Diagnostic Tool.

Detection of electromagnetic clutch of the compressor line, the voltage is normal. After the failure of the circuit is determined, the high and low pressure port of the air conditioning system is measured by using multi meter.. As a result, the pressure at high and low pressure is abnormal, and the pressure is high and low, and under the Launch X431 Diagun III or Xtool PS2 tool checked, the engine was found to rotate abnormally. Ask the driver, there is no phenomenon before the refrigerant filled, and then suspect that there may be too many refrigerants.

Gradually sucked out of a portion of the refrigerant, the engine speed changes observed in the tool to see a few bubble, accelerate to 1700 r/min when bubbles disappear, troubleshooting.

When the air conditioning system of the refrigerant injected too much, it will reduce the flow of refrigerant in the system performance, causing the compressor malfunction, poor refrigeration, the engine idle speed instability, You can check with the Autel MaxiSys MS908 or XTOOL VAG401 tool before you inject the refrigerant, and it will remind you how many refrigerants you should add.
Source: http://www.focalobd.com/blog/honda-car-air-conditioning-refrigeration-malfunction-maintenance/

Check the contents of the automobile brake system

Whatever the ultimate brake system is by the brake pad or brake shoe to complete brake function. Therefore, to check the thickness of the brake pads or brake shoes regularly. When they find it close to or less than the thickness of the minimum thickness specified by the manufacturer, should be replaced immediately. Check the brakes at the same time, also check the brakes or brake drum wear, if use Auto Diagnostic Tool to check the contact surface dents, the need for timely disc or drum, to ensure the brake pads contact area improve braking force.

In addition also need to check the brake fluid level, if that brake fluid level is too low, should be appropriate to add brake fluid (must add the same brand of brake fluid, different brands of brake fluid in the brake after mixing pipe may corrode and affect brake effect), the height of the liquid should be maintained in brake oiler scale division line between the upper and lower bounds, and then use the Launch X431 Diagun III or Launch Creader VI tools to check the brake fluid working is normal.

Mainly from the maintenance of brake fluid brake fluid selection and replacement of two aspects, in the selection of brake fluid, depending on how the performance, the best buy brand name products, quality and security. If the brake fluid fouling, emissions from all brake fluid and flush the entire system, then use the new brake fluid filling cylinder.

Do not re-use brake oil, all be discharged from the system of the brake fluid should be discarded, if you continue to use the brake fluid in the case of deterioration, will be on the brake master cylinders, wheel cylinders, hydraulic control unit and other components It produced affecting the normal operation or even damage the brake and performance degradation or even brake failure. Cause accidents, affect the safety of personnel and passengers, so check the car's performance on a regular basis, Autel AutoLink AL609 and Autel MaxiDiag Elite MD802 is a professional tool for checking vehicles.
Source: http://www.focalobd.com/blog/check-the-contents-of-the-automobile-brake-system/

Choose automobile ABS brake fluid matters needing attention

ABS is the installation of the modern car regular device, its function is becoming more and more attention. Because of the ABS system is more complicated than conventional braking system, you can use the Auto Diagnostic Tool to check the ABS system routine performance, therefore when choosing, replacement and supplement the brake fluid should pay special attention to:

The brake fluid correct selection:
1, in the ABS system, there is more rubber seals and rubber hoses, this requires the owner in the use of the brake fluid can't have strong swelling effects on rubber seals.

2, in the ABS system, there are more and more sophisticated metal parts and therefore requires the choice of brake fluid has good corrosion resistance, so as to avoid metal parts from corrosion.

3, in the ABS system, there is a longer, more complicated pipeline, therefore, requires the choice of brake fluid has a high boiling point, in order to avoid the brake fluid vaporize that braking system to produce air resistance, you can use Launch X431 CResetter II or Launch X431 Diagun III tool to check the brake system is working properly.

4, in the ABS system, the brake fluid through repeated pressure increase and decrease the circulation, therefore, the work of the brake fluid temperature and pressure is higher than conventional braking system of brake fluid, which requires the brake fluid has better oxidation resistance, in order to avoid brake fluid in formation colloid, sediment and corrosive substances.

5, the ABS system, brake fluid pathway is longer and more tortuous, resulting in brake fluid in flow process by the greater resistance; in addition, in the ABS system, moving parts more, more sophisticated, these moving parts of lubrication requirements higher. Therefore, ABS system, the choice of brake fluid must possess proper viscosity.

According to the above characteristics, ABS systems generally use brake fluid DOT4, Although DOT5 brake fluid has a higher boiling point, but because DOT5 is a silicon brake fluid, will strong damage to the rubber parts. Therefore, In the ABS system, generally do not use the brake fluid DOT5.

However, due to DOT3 and DOT4 brake fluid is alcohol-based, with strong moisture absorption, with the use of extension of time in which the water content will increase. When the brake fluid contains more moisture, will make dynamic pressure regulation means precision parts corrosion occurs, in cold weather conditions, but also the viscosity of the brake fluid increases, affecting the flow of the brake fluid in the brake system, the brake becomes slow, resulting in system moving distance is extended.

In addition, the brake fluid in the water will have a very significant impact on the boiling point of the brake fluid, gas resistance. DOT3 and DOT4 brake fluid usually after 12 months of use after which the moisture content of 2%, after after 18 months of use, where the moisture content of up to 3%, you can use the Autel Maxidiag Elite MD703 or Autel MaxiDiag FR704 tool to check the brake fluid water content, therefore, suggest you every 12 months to replace a brake fluid.
Source: http://www.focalobd.com/blog/choose-automobile-abs-brake-fluid-matters-needing-attention/

Automotive engine requires regular cleaning

Because the car use environment is very complex, the engine used for a period of time, into the engine room of dust and impurities will form carbon and resin and other harmful substances in the engine surface, if long time don't clean up, these harmful substances will be converted into sludge, penetration in the surface of the engine will not only cause metal parts rusting, plastic parts deformation aging, but also lead to increased engine power reduction and increase of fuel consumption, and even generate various oxidation damage to the engine, these fault you can use OBD Diagnostic Tool to check it out, so regular cleaning of engine is very necessary.

You can ask professionals to clean the engine, you can do it yourself by following the procedure to clean the engine. First, the automotive electronics with plastic film masked, then use a wet towel to cover the film above, to prevent high-pressure water rushed into the engine, cause the car difficult to start. By the side of the engine from top to bottom will be attached to the class dirt engine compartment side and engine appearance rinse with water cannons; next, engine external cleaning agent evenly sprayed on the engine and engine compartment periphery. If necessary, you can use the Launch X431 GDS or Launch X431 Diagun III tool.

After about three minutes, with a fiber brush to clean all parts reach of the engine compartment, and rinse with water cannons quickly brushed off the dirt. Then the engine external cleaning agent sprayed on engine surface. Repeated 2-3 times, until the appearance of the engine clean.

In addition, the appropriate selection of some of the gasoline additive products can also reduce the engine oil contamination and carbon deposit, you can periodically use Autel MaxiSys Pro MS908P or Autel Maxidiag Elite MD702 tool to check the car's performance.
Source: http://www.focalobd.com/blog/automotive-engine-requires-regular-cleaning/

How to prevent automobile carbon deposition

Carbon deposition is spark discharge machining a manifestation of abnormal, therefore, should try to reduce vehicle carbon deposition by some Auto Diagnostic Tool.

First, Don't long time idle running.
Long idling time, the engine reaches normal temperature time becomes longer, the gasoline is injected into the valve back after the evaporation speed is slow, carbon also arises. At the same time often idling speed, air flow into the engine also small, so flushing carbon deposition action becomes very weak, will promote the accumulation of carbon deposition. You can use the Launch X431 GDS 3G or Launch X431 Diagun III tool to detection of carbon deposition.

Second, high-speed running, try to improve my hand car shift speed.
Run high-speed purpose is use air flow on the inlet to prevent carbon deposition. In addition, to improve the speed of the shift also run a high speed have the same role, in the original 2000 speed when shifting into 2500 conversion, not only can effectively prevent coke formation, it can also increase the power of the car, but also to avoid the change burst speed is too low to bring vibration block, protect the engine.

Third, pay attention to turn off car.
For cars fitted with a turbocharger, don't stop immediately after high speed or climbing, in idle running 10 minutes and then stop, because the car is equipped with a turbocharger which carbon formation rate than the average naturally aspirated car several times faster, you can use Autel MaxiDiag Elite MD802 or Autel Maxidiag Elite MD703 tools to detect the car's performance.
Source: http://www.focalobd.com/blog/how-to-prevent-automobile-carbon-deposition/