What's the function of the engine oil?
The cooling effect, as the name implies, cooling the engine. The engine oil auxiliary cooling system (such as water, water pump, radiator, cooling system, and the flow of air through the engine oil and the crust) take away the heat generated by the piston. The piston cooling gasoline to shoot from the opposite spray. Therefore, engine oil must have a cooling performance good, and can withstand high temperature.
Cleaning effect refers to produce clean burning charcoal, oil stains, or stains in oil or grease down, use the filter to remove stains. Engine oil can clean the engine and remove impurities in the filter residue, acid corrosion protection of metal surfaces formed from the combustion process. At the same time, engine oil can burn away the residue (coke), lubricating oil products of combustion or oxidation products (low temperature sludge), and the rapid settlement of bottom to the oil pan. Thus the oil seems dark dirty things, only by the naked eye cannot judge its quality.
Engine oil for the engine. Since the machine used for that we can imagine it should be used to lubricate the machine. A relatively large effect of engine oil is to reduce the friction between the activities of engine components, ensure the flexible operation of the engine. We call this lubricating role. In fact, in addition to the engine oil lubrication, there are clean cooling and sealing, anti-oxidation, anti rust, buffer and so on.
In the maintenance of the time, we listen to the most one sentence is probably "oil turbidity, have to change." but, why is the engine oil will be cloudy, you must replace the new?
