Should a New Car Be Driven at High Speed for a Break-in?

[DeBennett]

New cars need to be driven at high speed for a break-in. Reason: Driving at high speed means increasing the engine's RPM, but safety must be prioritized. The actual purpose of driving at high speed is to use high RPM to circulate the engine oil rapidly, flushing out carbon deposits accumulated at the bottom. New cars do require this process to significantly enhance engine performance. The best time for this is right after the break-in period. Optimal Timing for High-Speed Break-in: Generally, the best time to drive at high speed is after the first maintenance and oil change at the 4S dealership. During the high-speed break-in, maintain each gear at around 4000 RPM for a period to allow the engine to operate at high speeds. Gradually following this process will result in noticeable improvements in acceleration and fuel efficiency.