How to Drive an Automatic Transmission Car at High Speed?

[OKevin]

Methods for driving an automatic transmission car at high speed: First, check if there is a manual mode. If there is a manual mode, switch to manual mode and keep each gear at a high RPM for one or two minutes; if there is no manual mode, shift to L gear if available or S gear if available, press the accelerator to maintain a high RPM for one or two minutes. Driving at high speed allows all components of the car to break in and match, especially the transmission gears, which can achieve better break-in. It also improves the atomization effect of the fuel injector, making gasoline burn more fully. Due to the high-speed movement of the piston, the temperature in the cylinder is higher, and the flow and speed of air entering and exiting the valves are also high, resulting in more complete combustion. Driving at high speed helps remove carbon deposits from the valves.

[StNadia]

I've been driving automatic transmission cars for over a decade and believe that high-speed runs are an excellent maintenance method. Choose a good highway section with favorable road conditions, such as during early mornings with fewer vehicles. First, warm up the engine for about ten minutes until the water temperature normalizes, then switch to manual mode or sport gear. Downshift to third gear or lower, gently press the accelerator to raise the RPM above 3000, and maintain this for about thirty seconds. During this process, the engine noise increases as it clears carbon deposits, resulting in smoother operation. I make time to do this once a month, and each time afterward, I feel the acceleration response improves noticeably. Remember to check tire pressure and coolant levels beforehand, and avoid attempting this in rainy conditions or areas with many curves to prevent loss of control. If you're a beginner unsure about the process, consult a mechanic for advice to avoid risks.

[Quintero]

I enjoy driving for fun, and pushing the car at high speeds is not only practical but also pretty cool. Using the manual paddle shifters on an automatic transmission is particularly convenient. After warming up the car on the highway, I manually downshift to fourth gear, press the accelerator deeper to let the RPM surge to 4000 and hold it for over ten seconds—the roaring engine feels exhilarating. This helps clear out some carbon deposits, especially noticeable after city traffic jams. I often choose weekends when the highway is less crowded for this, ensuring safety and minimal disturbance to others. Keep an eye on the dashboard during the process to avoid excessively high RPMs that could harm the engine. Doing this every three weeks noticeably improves the car's power, making it a cost-effective practice.

[VonZoey]

I drive conservatively and approach high-speed runs with caution. I only perform them on open, flat sections of the highway when traffic is light. First, I warm up the engine for five minutes to ensure everything is normal, then switch to sport mode and downshift to fifth gear. I smoothly press the accelerator to reach 3000 RPM, hold it briefly for about ten seconds, and then release. This helps clean some carbon deposits from the engine, but there's no need to do it frequently or for extended periods. I believe safety is paramount and advise against blindly pursuing high RPMs—doing this once every two months is sufficient. Always check the engine oil and filter before starting to avoid potential issues. Regular maintenance is far more important in the long run.