The engine is the most important part of a car, just as the heart is to a man and the foundation is to a building. In winter, it is often difficult to start the vehicle, and it is easy to stall after starting. This is because the oil flows at low temperature
　　Due to poor performance, it is unable to reach the friction surfaces quickly in the startup moment, and the metal parts without necessary lubrication dry friction with each other, which greatly increases the movement resistance and makes it difficult for the vehicle to start. The damage to the engine is very great.
　　1, timely replacement of oil, oil once black, thin, sand, should immediately stop using, do not change the oil for a long time or use bad oil, not only can not be lubricated but also damage the engine. It is recommended to replace the oil with a new filter at the same time. At this time, in order to prevent the dirt inside the filter of the old machine from damaging the quality of the new oil, otherwise the new oil will be changed in vain.
　　2, use lower viscosity oil, low viscosity oil mobility is better, can effectively reduce engine wear.
　　3, before cold start, be sure to preheat the car. The main is to reduce wear and tear, so that the engine can reach the normal fit clearance, maintain the best working state.
　　4, use some maintenance products, such as antifreeze, some products have a good effect.