Car maintenance is to cars, just like daily necessities to people; people have the need to eat, wear, and live, and cars also need maintenance. Careful maintenance can keep the car in the best working condition or restore the performance that the car should have to ensure the safety of the car to the greatest extent and reduce the cost of car maintenance. Keeping the various systems of the vehicle clean and lubricated frequently can achieve "maintaining maintenance instead of maintenance", which can save a lot of maintenance costs and prolong the service life of the vehicle, which is also the significance of car maintenance.