What are the precautions for running in a new car?

[Melo]

When running in a new car, pay attention to preheating before starting; avoid emergency braking; ensure fuel quality; avoid long-distance trips and perform initial maintenance. The reason for preheating before starting is that when the vehicle is turned off, the engine oil inside will slowly flow back into the oil pan. After starting the vehicle, it takes some time for the oil to fully lubricate all parts of the engine. Avoiding emergency braking means prohibiting sudden braking. When emergency braking occurs in a new car, it will subject the braking system to a huge impact, while also increasing the impact load on the chassis and engine. Ensuring fuel quality requires using high-quality gasoline. The oil used in a new car should not be of a lower grade than specified by the manufacturer, and anti-wear additives should not be used to avoid insufficient running-in despite sufficient mileage. Long-distance trips are prohibited during the running-in period of a new car. Long-distance driving causes the engine to operate continuously for extended periods, which can easily lead to increased wear of mechanical parts. Initial maintenance is required for first-time driving. During the running-in period of a new car, frequently check whether the engine oil, coolant, and battery electrolyte are sufficient, and replenish them immediately if any are found to be lacking.

[Flores]

I've bought several new cars, and the break-in period is particularly important. Within the first 1,000 kilometers, avoid slamming the accelerator or braking hard, and it's ideal to keep the speed below 80 kilometers per hour. This allows the engine components to gradually adapt, reducing internal friction and wear. I also recommend frequently shifting gears and driving at different speeds, such as stop-and-go in the city and gentle cruising on the highway, to evenly break in all parts. Avoid full loads or towing heavy items; it's better to keep the initial load light. Regularly check the engine oil level and tire pressure, and after 500 kilometers, see if the oil has turned black, replacing it if necessary. After the break-in, the car will feel smoother and more fuel-efficient. With extra care, long-term performance improves significantly, and I've personally saved a lot on repairs.

[McAdrian]

Familiar with mechanical details, I remind you that the key to breaking in a new car lies in avoiding high RPM operation. The piston rings and cylinder walls inside the engine have minor imperfections during the initial period, and gentle driving helps them naturally wear in to form a proper seal. If you drive aggressively from the start, it can easily cause cylinder scoring or abnormal wear, shortening the engine's lifespan. Within the first 1,500 kilometers, avoid speeding over 100 km/h and refrain from towing heavy loads. Pay attention to engine temperature and don't drive at high speeds immediately after a cold start. It's recommended to change the oil early during the first maintenance to remove metal particles generated during break-in, ensuring smooth operation of the lubrication system. After a smooth transition, fuel efficiency will improve, reducing future major repair expenses.

[Emman]

As a family car user, I prioritize safety and reliability. During the break-in period of a new car, avoid driving too aggressively and maintain a moderate speed. This ensures more responsive braking and steering, enhancing safety for family trips. Avoid sudden acceleration or braking to provide a smoother ride for children. Initially, minimize long-distance highway driving and instead vary speeds evenly on suburban roads for proper break-in. Regularly check engine oil and brakes to ensure everything is functioning correctly. A well-broken-in car will have fewer issues in the future, offering long-term reliability and peace of mind. Developing these small habits can bring significant benefits.