How to Perform High-Speed Running for Automatic Transmission Cars?

2 Answers
VonTyler
07/24/25 9:38am
Automatic transmission cars perform high-speed running mainly by: placing the gear in D, fully accelerating the throttle, temporarily reaching the red zone in RPM, then shifting gears, and repeating the process. Here are some additional tips: 1. If the transmission is a manual-automatic transmission, you can use D gear positions 3 and 2. For example, running at 70 km/h in 2nd gear can achieve an RPM of three to four thousand. 2. High-speed running for cars, also known as breaking in a new car, means testing the car's maximum performance capabilities. The RPM should not exceed two-thirds of the design limit. Additional Information: 1. Perform high-speed running after the first maintenance, as after the first maintenance, the torque of various screws and potential issues with fluid levels have been inspected and addressed. 2. Find enough people to match the vehicle's full load capacity as stated in the manual. If you can't find enough people, you can fill the trunk with items. 3. Choose a safe route, and after high-speed running, drive about two thousand kilometers before changing to new engine oil.
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MacJoshua
08/11/25 4:58am
Driving an automatic transmission car on the highway is super exciting for me! Step on the gas pedal all the way, and the car zooms forward with quick gear shifts in D or S mode, which feels amazing. When cruising above 120km/h, the wind resistance is significant, so tire pressure must be checked evenly to avoid unsafe wobbling. I always fill up the tank in advance and ensure the coolant temperature gauge is normal. Driving two to three hours on the highway helps clear engine carbon deposits, but never exceed speed limits. With cruise control engaged and a firm grip on the steering wheel, long trips become scenic journeys. The car feels refreshed afterward, but fatigue driving is a no-go—safety always comes first.
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