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Is Running-in Additive Necessary for New Cars?

DateDecember 16, 2025

1 Answer

IS
Isabella Sandoval
December 16, 2025
Not liked76

New cars do not require running-in additives. Normal usage is sufficient for the running-in period, and additives should not be used. These running-in additives are corrosive and may increase damage to the vehicle's engine, so it is advisable not to use them for new cars. The following precautions should be observed during the running-in period for new cars:

Avoid emergency braking:

Emergency braking not only shocks the braking system during the running-in period but also increases the impact load on the chassis and engine. It is best to avoid emergency braking within the first 300 miles of driving.

Avoid overloading:

If a new car is driven at full load during the running-in period, it may cause damage to the components. Therefore, within the first 1,000 miles of driving, the load should generally not exceed 75-80% of the rated capacity.