In winter, the speed of automatic startup is very slow. Does stepping on the accelerator affect the car?

1. After the vehicle is parked for a long time, the oil flows back to the bottom of the crankcase under the action of gravity. At the beginning of the vehicle, due to the poor fluidity of the oil, the oil arrived at various parts that need lubrication late;

So that the engine oil can not be sent to the place where lubrication is needed immediately, and a protective oil film is formed on the parts, especially the camshaft, which completely needs pressure lubrication. At this time, when the engine is running at high speed, many parts will be dry-ground, which will increase the wear of each part.

2. When the vehicle is cold-started, the piston ring, piston and cylinder are still in contraction state, and the fit clearance between these parts can not reach the ideal fit value. In addition, the sealing ability of engine oil is not strong, and running the engine at high speed will cause the exhaust gas from the combustion chamber to enter the crankcase and pollute the engine oil. At the same time, the piston ring can't scrape off the engine oil on the cylinder wall, which causes the engine oil to burn, which is also the reason why many vehicles emit blue smoke during cold start.

Extended data:

Matters needing attention in winter car use:

1, engine preheating

In order to protect the engine in winter, antifreeze must be selected correctly. The antifreeze should be changed once every two years, but the mixed antifreeze must be changed once a year. Then there is lubricating oil. There is a high demand for automobile lubrication in winter. If you use summer oil, you must replace it. If you use it for a long time, you should replace it in time.

2. Tire maintenance

When the weather is cold, the rubber will become hard and brittle. In winter, the tire pressure should not be too high, but it should not be too low. If a soft tire is used under low pressure, it will age quickly. In addition, it is necessary to clean the inclusions in the tire tread frequently in winter to avoid using tires that have been mended more than once. In addition, tires that have been used for a long time have different degrees of internal and external wear. In order to ensure safety and reduce wear and tear, tires should be replaced regularly.

References:

People's Network-It's getting cold! Pay attention to the maintenance of these six places on the car.