How to Break in an Automatic Transmission Car?
3 Answers
Methods for breaking in an automatic transmission car: 1. The break-in mileage is generally 500 kilometers, and the speed should not be too fast, maintained at 60 to 70 kilometers per hour, with the engine speed not exceeding 2,200 rpm; 2. During the mid-term of the break-in period from 500 to 1,000 kilometers, the speed can be increased to 90 to 100 kilometers per hour, with the engine speed below 2,500 rpm; 3. From 1,000 to 1,500 kilometers, which is the mid-to-late stage of the break-in period, the speed can be increased to below 120 kilometers per hour, with the engine speed not exceeding 3,000 rpm; 4. During the break-in period, each time you insert the key, turn it to the second position and wait for 10 seconds before starting the engine. This allows sufficient time for the internal oil pressure and fuel injection volume to adjust, ensuring better coordination of the engine components.
When I first picked up my new car, the technician at the 4S store emphasized how crucial the break-in period is. For the first 300 kilometers or so, don’t exceed 60 km/h—take it slow to let the engine and transmission parts properly adjust and work together. For automatic transmissions, just keep it in D mode and drive steadily, avoiding sudden acceleration or hard braking to prevent excessive friction. City commuting is ideal during this phase; don’t rush onto highways. After this stage, gradually increase the speed to within 80 km/h. I also frequently checked the engine oil and coolant temperature and scheduled regular minor maintenance, which helps the car stay durable and fuel-efficient in the long run. Now, after two years of driving, the engine runs incredibly smoothly, and I’ve barely spent any money on repairs. Remember, gentle driving isn’t a waste of fuel—it’s a long-term investment.
As an ordinary office worker, I commute daily with an automatic transmission car, and the break-in process is quite simple. Just keep the speed below 70km/h for the first 500 kilometers, and driving at a steady speed feels the most comfortable. Maintain the engine speed around 2000 RPM, not exceeding 3000 RPM, so the engine breaks in evenly without wasting fuel. Press the accelerator gently when starting, and ease into stops to avoid sudden movements that could damage parts. The advantage of an automatic transmission is not having to worry about shifting gears, but during the break-in period, smooth operation is even more important. After driving for a while, I found that starting in eco mode can help save fuel and aid in the break-in process. Developing this habit means fewer car troubles later, saving money and giving peace of mind. Don’t cut corners—put in the effort for the first month, and the car will last longer.
