Engine oil, that is, engine lubricating oil. It can play the roles of lubrication and wear reduction, cooling, sealing and leakage prevention, rust prevention and corrosion prevention, and shock absorption and buffering for the engine. Engine oil on the market can be divided into mineral oil and synthetic oil because of the difference of base oil (vegetable oil is not counted because of its scarce output). Many car owners know that once the car burns engine oil, the engine may be scrapped. Below, this article will teach you to judge whether the car burns engine oil.
Second, the fault phenomenon: the tail gas emits blue smoke.
According to experts, in the actual driving process, if the exhaust pipe emits blue smoke, the engine will shake at idle speed, and the engine oil will be seriously insufficient (no oil dripping) during a routine maintenance (oil change) cycle.
Less, then your car may burn oil. Among them, when the car is "burning engine oil", when it stops for the first time every morning, there will be relatively thick blue smoke discharged from the rear exhaust pipe. After a period of time, the blue smoke disappears, usually not during the day.
A similar situation will happen again; Accelerate the "burning engine oil". When the vehicle is running, the driver slams on the accelerator or slams on the accelerator in situ, and the exhaust pipe emits a lot of blue smoke, which is serious when the vehicle is running.
After the throttle, the driver can see the blue smoke from the reflector on the exhaust pipe side.
During the interview, the expert also told the reporter that if the owner suspects that his car is burning engine oil, he can fill the car with engine oil, let the car drive 1000 km, then go to the maintenance station to weigh the oil filter and fill it up.
Oil, and then let the car travel 1000 km. Repeat this three times and take the average. After the running-in period, the normal fuel consumption can generally reach 1l/ 1000km. If it exceeds the standard, the engine must be repaired.
Third, the consequences: it may lead to engine scrapping.
According to Lu, the so-called "burning engine oil" means that the engine oil enters the combustion chamber of the engine and participates in the combustion together with the mixed gas. The phenomenon of "burning engine oil" in the car will damage the oxygen sensor of the vehicle too quickly.
This will lead to the increase of carbon deposition in the combustion chamber, unstable idle speed, weak acceleration, rising fuel consumption, excessive exhaust emissions and other adverse consequences. In severe cases, the engine is not lubricated enough, which will cause irreparable damage or even scrap, resulting in maintenance costs.
Greatly increased even the hidden danger of accidents.
Four. Cause of failure: normal wear+abnormal wear.
According to experts, there are two reasons for burning engine oil: normal wear and tear, that is, the normal phenomenon after the vehicle runs for a certain number of kilometers. The average vehicle is about 200,000 kilometers, different cars, no.
Different people and different areas (air dust content) have great influence on the service life of the engine; Abnormal wear and tear is the early wear and tear caused by improper product quality and use.
In addition, unqualified engine oil is used, engine oil and engine oil filter are not replaced after the deadline, cold start with large throttle, long-term operation without engine oil, long-term high-temperature operation, long-term overload and high-speed operation,
Long-term operation under the conditions of poor air quality, no replacement of air filter, insufficient oil pump force, low oil pressure and blocked oil circuit. Will cause the engine to burn oil, thus reducing its service life.
5. Solution: Choose high-quality engine oil.
In order to prevent the car from burning engine oil, experts suggest that car owners choose better quality gasoline during driving; Classic cars can use oil with slightly higher viscosity to increase the sealing between piston and cylinder wall. while
However, the ultimate solution to "burning engine oil" is to thoroughly overhaul the vehicle and fundamentally solve the problem; Check the oil meter frequently, and change the oil and oil filter regularly according to the requirements of the product instruction manual.
Replace the original oil filter spare parts; In order to adapt to the road conditions, meet the normal operation and service life of the engine and reduce fuel consumption, it is necessary to choose high-end engine lubricating oil. Especially hair with turbocharger.
Power (its working temperature is higher) requires the use of high-quality engine oil with low volatility, because engine oil volatilization is also an important factor leading to "burning engine oil" in automobiles.