Owners do not strictly comply with the requirement to save money, reduce oil grade - the owner, save money, oil grade - Automotive repair and
Owners do not strictly comply with the requirement to save money
, reduce oil grade - the owner, save money, oil grade - Automotive repair andQ: The price of oil has risen three-week, when I buy a car manufacturer and Sell To add 93 officers say the oil, now oil prices rise so fast, I want to switch to No. 90 oil, will you? Impact on the car right? Related Reading: 2010 Beijing International Auto Show feature
A: The fuel price adjustment continued, many riders forced to find ways to reduce the cost of cars, of which there are a lot of people think the lower grade gasoline to meet the cost reduction effect. The reporters ask the owners of the service issues of concern to the professionals.
Cars "drink" the final say oil compression ratio
Piston within the cylinder compression ratio is the maximum and minimum stroke volume stroke volume ratio, is equivalent to the whole movement of the piston stroke TDC and BDC positions at different stroke volume ratio. General design of the engine the same in other cases, the higher the compression ratio the greater the power the car, the higher the efficiency, fuel economy will be better. But the compression ratio is too high will result in decreased stability, reduced engine life. And the compression ratio can not increase indefinitely, because the combustible gas mixture during the compression temperature increase dramatically, if not the only point on the piston temperature has already exceeded the ignition of inflammable gas, the combustible gas mixture will deflagration, which is called "Knocking", a serious engine would knock even reverse damage to the engine.
Now Market Grade gasoline are 90,93,95,97 and so on, these figures represent the gasoline octane number, which is representative of gasoline antiknock. Cars "drink" what oil, mainly by the compression ratio the final say. General requirements of the greater compression ratio the higher grade gasoline. Compression ratio is usually 7.5 ~ 8.0 should be used in 90 of motor gasoline; compression ratio of 8.0 ~ 8.5 90 ~ 93 should be used for motor gasoline; compression ratio to be elected in the 8.5 ~ 9.0 93 ~ 95, motor gasoline; compression ratio at 9.5 ~ 10.0 95 ~ 97 should be used gasoline.
If you choose the oil and compression ratio do not match, it will produce a series of serious consequences. For example, if the engine oil is designed according to 93, while the owners of No. 90 with a gasoline engine combustion phenomenon occurs early, and then produce an instant high moderate high pressure, not only burnout Spark Plug , Cylinder and so on.
Car What grade of gasoline used in the end, all have stated in the manual. No. Do not think that the use of low oil can save the cost, they might, but also subsidize Service It.
TIPS Experts believe that the vehicle to give full play to the role of every drop of petrol in order to protect the car run fast.
refueling morning or evening is better to avoid the midday sun. Because gasoline is a volume rather than weight, billing, thermal expansion and contraction. Morning or night refueling, the same volume of gasoline can have more quality, more than a box of oil can run a few tens of kilometers
Please run fuel tank half of the urban or 2 / 3. The urban Travel Often stop and go, if you fill the tank will be more heavy load on the engine, power and because they did not start the vehicle fuel consumption Moreover, there are many gas stations urban areas, are not afraid of no place to be added.
fuel tank should not exceed the ceiling. Likely to be volatile because of the time to fill up the atmosphere causing air pollution, not only wasteful but also harmful to the air, but also may damage the engine or catalytic converter.