How to Perform a High-Speed Run with an Automatic Transmission?
3 Answers
Methods for performing a high-speed run with an automatic transmission: You need to place the gear in D mode, fully depress the accelerator for acceleration, and the tachometer will temporarily reach the red zone. After that, shift gears and repeat the process. However, the high-speed run should not last too long. Maintaining the RPM in the red zone for an extended period can increase wear and even cause overheating issues, potentially damaging the transmission. A high-speed run essentially allows a new car to test its maximum performance capabilities, but the RPM should not exceed two-thirds of the design limit. Performing a high-speed run can help clear oil passages, burn off carbon deposits, and improve future performance. The purpose of driving at a certain high speed is to break in components such as wheel axles and the main reducer, but the speed should be controlled between 100 km/h and 120 km/h. Avoid pushing the speed too high.
I often take my automatic transmission car on the highway to give it a good run, especially after the break-in period for a new car. I choose a highway or suburban road with good conditions and little traffic to avoid distractions. After starting, I don’t rush to floor the accelerator. Instead, I smoothly accelerate to around 80 km/h in D gear, maintaining it for a minute or two to let the RPM rise and clear some carbon deposits. Then, I increase the speed to between 100 and 120 km/h and keep it there for about 20 minutes. Once the engine runs smoothly, it helps optimize performance. The key is to monitor the dashboard throughout, ensuring the tachometer doesn’t hit the red zone—safety first. I always bring water and my phone in case I need to pull over. If I feel any shaking or unusual noises, I slow down immediately and check. While running at high speeds is beneficial, I never take risks. Regular maintenance is the best way to keep things worry-free.
When playing with cars, I enjoy driving at high speeds, and the simplicity of automatic transmissions suits me well. Before hitting the road, I always check the tire pressure and fuel level, choosing to depart on weekend mornings when there are fewer people. Once on the highway, I switch to manual mode if the car has it, which allows precise speed control between 100 and 130 km/h—no sudden bursts. Maintaining a constant speed for over ten minutes helps the engine expel residue more effectively. Don’t forget to take breaks in between to monitor the engine temperature. This habit has slightly reduced my fuel consumption and made my daily driving smoother. For safety, always buckle up and stay focused.
