Frequency automotive lubricants used in the repair and maintenance is very high. In addition to high-quality lubricating oil to protect the engine, reducing the number of oil changes, but also save fuel costs. In this season, but also pay attention not because of car trouble caused by improper use of lubricants, "inappropriate" to use the general riders from four kinds of lubricating oil "misunderstanding."

For the following four "misunderstanding", car care center technician for professional explanation:

A misunderstanding: Oil can pay more to pay more

Should control the amount of lubricating oil on the dipstick is between the lower scale line as well. Because the lubricating oil will be too fleeing from the combustion chamber and the piston in the cylinder gap formed by the combustion of coke. The coke will increase the engine compression ratio, the knocking tendency to increase; red hot coke form within the cylinder also easily lead to preignition, as falling within the cylinder and the cylinder will aggravate the wear of the piston, but also accelerate oil pollution. Secondly, an excessive increase in the stirring resistance of the lubricating oil of the crankshaft connecting rod, so that fuel consumption increases.

Misunderstanding number two: When lubricating oil change darkened in respect of the

This understanding is not comprehensive. For there is no lubricating oil plus dispersant quiet, the color black is indeed the oil has been a serious deterioration of performance, but the use of modern automotive lubricants are generally added quiet decomposition agent. This quiet film adhesion agent black carbon deposition on the piston and washed down and dispersed in the oil, reducing the temperature of the engine to generate a precipitate, and therefore lubricating oils tend to darken the color after a period of time, but this time oil is not completely bad.

Misunderstanding number three: Tim lubricants often do not change

Always check the lubricating oil is correct, but only supplement not replace only compensate for the lack of quantity of oil, but can not fully compensate for the loss of lubricating properties. Lubricant during use, due to contamination, oxidation and other quality will gradually decline, while there will be some consumption, reduce the number.

Misunderstanding four: large useful additive

Real quality oil with a variety of engine protection function is finished, the formula already contains a variety of additives, including anti-wear agents, lubricants and the most exquisite recipe to ensure a balanced variety of performance into full play. Other additives not only add their own can not bring additional protection to the vehicle, but prone to react with the chemicals in the oil, resulting in decreased overall performance of oil