In summer, the car bears a higher load and the wear and aging of the machine will be worse than usual. Daily maintenance can make your car last longer. Therefore, how to advance the maintenance of the car in summer is critical. Here are just a few common tips for summer maintenance. 1, engine maintenance In the summer we should try to select some oils with higher viscosity because the viscosity of the oil will change as the temperature increases. When the temperature is high, the viscosity of the oil decreases, the oxidation resistance deteriorates, and the oil deteriorates easily. The oil film formed inside the engine is thin and non-uniform, which easily leads to failure. In addition, under the condition of ensuring sufficient lubrication, the viscosity of the corresponding viscosity should be selected according to the air temperature range, engine temperature, and actual vehicle condition at the time of use. 2, high temperature explosion-proof tire The higher the temperature is, the higher the air pressure in the tire is, the hotter the summer, the tire pressure that is too high or too low can easily cause the tire to swell when the abnormal heat rises. Therefore, special attention should be paid to check the tire pressure in the summer to keep it in the normal range. In addition, during prolonged summer driving or high-speed driving, the tires are prone to overheating. At the same time, the air pressure increases. At this time, it is necessary to stop the cooling, and it is forbidden to deflate or splash water to cool down. At the same time, due to the increase of rainwater in summer, to eliminate the impact of wet road surface on traffic safety, it is necessary to check the tread pattern, including the pattern type and pattern depth of the tire. In general, the manufacturer will put a wear mark on the tire. When the pattern wears out to reveal this mark, it means that we need to replace the tire.