Cars are different from people. People can metabolize, but cars can't It will only get older. Anti-wear agents and cleaning agents, including oil essence, should be added to car care products, but they must be stably combined with the used engine oil. It is necessary to consult the oil manufacturers. Oil essence is very useful for going out and having nowhere to refuel. Some places only have 90 oil. All vehicle additives should not be added at will before the function of additives is clearly understood. Although normal maintenance is necessary, automobile additives definitely deserve more attention. The fuel system is fouled. After being cleaned by fuel essence, fine particles will block the tiny "bottle strength" position of the fuel needle and carburetor nozzle, and then block the oil circuit for a short time, resulting in unstable idle speed. However, if Haute fuel essence is used continuously, small particles will be decomposed, so that the oil circuit will be unblocked again and the idle speed will return to a stable state. Therefore, the long-term use of advanced fuel essence is an indispensable element for the normal operation of the engine.