Do New Cars Need Break-in Additives When Refueling?
2 Answers
New vehicles do not require additional break-in oil during the run-in period. Below are precautions for new car usage: Avoid Overloading: Carrying excessive weight during the break-in period may damage mechanical components. As the powertrain components haven't fully seated yet, aggressive acceleration will cause irreversible damage. Therefore, always follow the "slow and steady" principle during this phase. Speed Limitations for New Cars: There are speed restrictions during break-in: domestic vehicles generally 40-70 km/h, imported vehicles typically 100 km/h. When fully accelerating, speed shouldn't exceed 80% of maximum velocity. The recommended engine RPM during break-in is 2,000-4,000 rpm.
As a driver who frequently changes cars, I've always felt that break-in additives are unnecessary. When I first bought a new car, I had my doubts too, but after consulting several mechanics, they told me that modern car engines undergo precise testing and pre-breaking-in at the factory, and the oil systems are designed to be extremely advanced. Adding extra break-in additives might actually disrupt the original balance. I'd recommend focusing more on driving habits—avoid flooring the accelerator or prolonged high-speed driving during the first 1,000 kilometers to let the parts break in naturally. Also, check the oil and coolant levels to ensure everything is in order. After all, new cars are built to last, and most manufacturer manuals don't even mention adding these additives—it's just a waste of money and unnecessary. Instead, focus on regular maintenance, like timely oil and filter changes, to keep the car running smoothly and safely.
