What items need to be done for "major maintenance" of automobiles?

First of all, you must change the oil of the whole vehicle, such as brake oil, booster oil, gearbox oil, antifreeze and so on. Manual gearbox does not need to change gearbox oil, nor does electric bicycle, because there is no booster oil. Some people have undergone major maintenance in three years, but the car has not yet traveled 60,000 kilometers. If half of the oil has not been driven, and some oil does not meet the replacement mileage standard, it can be replaced in a hurry.

After driving 60 thousand kilometers, the accelerator must be cleaned. When the fuel tank of the accelerator is started, it will cause obvious fluctuation of the car. Not easy to catch fire, slow acceleration response. If it is too dirty, the engine fault indicator will also light up. We need to remove the air inlet hose before cleaning it.

For the transmission oil, the time for changing the transmission oil for the first time should not exceed 40,000 kilometers, because the new car will have more iron filings and impurities, which will increase the wear between gears. Future replacement mileage can be extended to about 60,000 kilometers! Brake oil and steering assist oil. According to the data of family cars, 20,000 kilometers a year and 40,000 kilometers in two years! Because brake oil absorbs moisture, it will produce air resistance in extreme cases, thus reducing braking efficiency and increasing driving risk. It is recommended to replace it every two years.

In addition, the fuel filter has a long service life and must be replaced when it reaches 60,000 kilometers. If the car feels weak and the speed is greatly reduced, it is likely that the fuel filter is blocked. You must also replace the spark plug. If the spark plug is blocked, the gasoline will not burn completely, the engine will weaken and the engine will be damaged.