How Many Kilometers Should a New Car Run Before Going on High Speed?

[VanMadeline]

New cars can go on high speed after the break-in period. Driving recommendations for new cars: The maximum speed of a new car should not exceed 100 km/h, and the maximum RPM should not exceed 3000; it is recommended to drive on the highway after running 2500 kilometers; the first recommended maintenance includes changing the engine oil and oil filter. High-speed running: Generally refers to taking a new car on the highway after the break-in period. The purpose of this is to allow the new pistons and camshafts in the engine to experience their first rapid operation, ensuring better contact between them; to allow the transmission gears in the gearbox to experience high-speed rotation, making the engagement between the new gears smoother.

[LaAdrian]

As a veteran driver with over a decade of experience, I know that new cars nowadays actually undergo cold run-in at the factory, so it's fine to take them directly on the highway. Personally, I prefer doing a high-speed run at around 1,500 kilometers when the engine cylinder walls and piston rings have undergone initial break-in. A high-speed run doesn't mean racing—it's about fully engaging all gears. For manual transmissions, maintain 3,000 RPM in each gear for a few minutes; for automatics, just use sport mode for half an hour. However, it's crucial to check the tires and coolant before hitting the highway, and avoid flooring the accelerator right away.

[CooperRose]

As someone who has been studying car maintenance for years, I believe the best time to take a new car on a high-speed run is between 2,000-3,000 kilometers. At this mileage, the initial break-in is basically complete, and the transmission gears and drivetrain have adapted. The key to a high-speed run lies in operating the engine at high RPMs. For automatic transmission vehicles, using manual mode in 3rd gear at around 90 km/h for about 20 minutes yields the best results. Don't forget to check the engine oil condition - new engines may have metal shavings, so changing the oil before hitting the highway is safer and also helps remove carbon deposits.