Does an Automatic Transmission New Car Need a Break-in Period?
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If the vehicle's user manual does not specify otherwise, an automatic transmission new car does require a break-in period. Here is a detailed introduction to the precautions for breaking in a new car: 1. Pay attention to the break-in mileage: The break-in mileage for a new car is generally 1,000-3,000 kilometers. The initial break-in period is 0-500 kilometers. During this phase, avoid aggressively stepping on the accelerator or brakes, and keep driving speed and engine RPM low—speed should not exceed 70 km/h, and engine RPM is best kept below 2,000 rpm. The mid-term break-in period is 500-1,000 kilometers, during which driving speed and engine RPM can be moderately increased, but speed should not exceed 90 km/h, and the engine's maximum RPM can reach 2,500 rpm. The late-term break-in period is 1,000-3,000 kilometers. On good road conditions, speed can be increased up to 120 km/h, and the engine's maximum RPM can be raised to 3,000 rpm. To maintain the engine's vitality, avoid high RPM operation while driving—the lower the RPM, the better—otherwise, it may cause engine damage. 2. Emphasize warming up the car: Do not start driving immediately after starting the car. Wait until the coolant temperature reaches the normal operating range before moving. Especially in cold winter, gently press the accelerator pedal to allow the engine to operate at a slow pace. If you cannot warm up the car before driving, drive at low speed for the first 5 minutes after starting, and only accelerate once the coolant temperature is sufficiently high.
