First, after a long car parked, engine oil inside the lower part of the machine and back into the engine oil pan. Therefore, after the engine from lack of vehicles, at which time the engine is in the upper half without oil, lack of lubrication conditions. To about 30 seconds after launch, only because of the operation of the oil pump and the oil delivered to the engine to lubricate the piston, connecting rod and the crankshaft and other components.
Second, the engine operating temperature in less than before, and its supply system due to temperature is still low, OBD2 Scanner are unable to effectively complete gasification gasoline. Not gasification gasoline was "wet" when the liquid is not easy to launch combustion engine. At this time it is up to the choke effect, to prevent part of the air into the cylinders to improve fuel / air mixture ratio, and increase the engine speed the engine will not stall. When it reaches normal operating temperature, the automatic choke will naturally due to mechanical action and return to normal state; while the manual choke car Always remember to choke back, or because of the oil / gas mixture ratio is too high, not only a waste of gasoline, horsepower inadequate and incomplete combustion of gasoline will be black smoke. A cold engine to reach normal operating temperature ranging from about seven or eight to ten minutes, depending on different types of vehicles may be; and during this time, do not need to place a hot car, traveling at high speed as long as it does not harm.
Third, the transmission gear lubrication, it is generally most do not understand most easily overlooked. Transmission gear oil and engine oil is the same place: in the cold car transmission gear oil are flowing to the lower half. Only when the driving gear due to the operation of which will be brought up at the bottom of gear oil, lubricating the upper half. This is why most of the car in the cold car shift jerky causes. Its solution can not be resolved in situ hot car. Because the gearbox does not gear pump, place hot car only engine moving, never in the rest of the move, only to wait until after the fact way, slowly driving me a while to improve this situation.
Hot cars idling in place Auto OBDII Codeleser
is not necessary, because the effect is limited, but also a waste of gasoline and time. And the engine idling when gasoline may also be due to incomplete combustion produces carbon situations, but also hurt the engine. Worse still, some owners also like to pedal to the metal when idling, a disturbing their sleep early in the morning did not say the move is to make rapid wear of the engine, serious damage to the engine parts, nothing to gain, it is I do not know what these people are doing so aim? Therefore, the correct method of hot cars, should be in after launch 30-1 seconds after the road. But then do not travel at high speed should be kept at a low speed, the engine speed should not exceed 3000 to 3500 into a limit. Generally maintained 2000 rpm. Otherwise seek temporary, engine and gearbox are subject to intense wear and tear, but can not be recovered. Until the engine temperature rises to normal operating temperature, and then restore the "personal habits" of the driving method can be.
In fact, summer, winter requires hot car in winter than in summer, warm-up time longer. Engine after a night of rest, the friction surface of the oil has disappeared, lost film protection; hypothermia prompted lubricant viscosity increases, adhesion and mobility deteriorate, increasing the resistance when the engine starts. Driving this case, will increase the load on the engine, increasing unnecessary wear. Authority of the study showed that the engine cold start wear
Scania VCI accounts for about half of the entire amount of wear. Normal idling warm car can reduce this wear and extend engine life. Temperature, the metal will show a smaller elasticity and abrasion resistance, only in the normal operating temperature, the engine with the gap in order to reach the normal, to maintain the best working condition
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