
During the break-in period for domestic new cars, it is advisable to maintain a speed between 4070 km/h, while imported vehicles should generally stay within 100 km/h. The recommended RPM range is 0004000 rpm. Avoid long-distance driving during this period as prolonged engine operation may accelerate component wear. Below are precautions for new car break-in: 1. Avoid overloading: Keep payload below 75% of rated capacity for domestic vehicles (90% for imports). Overloading stresses engine, transmission, drivetrain, and suspension components. 2. Choose smooth road surfaces to minimize vibration and avoid sudden braking or collisions. 3. Use fuel with octane ratings meeting manufacturer specifications. Do not add anti-wear additives that might compromise proper break-in. 4. Properly adjust ignition and fuel systems to optimize fuel economy during break-in, especially when speed limiters affect vacuum economizer performance. 5. Practice gentle driving techniques: depress clutch and accelerator pedals smoothly during startup, then warm up engine at low speed until reaching 50°C~60°C.

When driving a new car, I usually keep the RPM between 1500 and 3000, especially during the first 1000 kilometers of the break-in period. This is because the engine internals need time to adapt, and high RPMs can accelerate wear. I remember my first car aged prematurely because I drove it at high speeds too early. Keeping a new engine at moderate RPMs protects components while improving fuel efficiency, avoiding excessive oil consumption as some veteran drivers warn. Of course, there are slight variations between models—for example, SUVs or sedans may temporarily increase RPM slightly when climbing slopes—but smooth driving is key overall. In city driving, I prefer gently pressing the accelerator to maintain around 2500 RPM for both fuel economy and peace of mind. After break-in, you can gradually push harder, but initially avoid aggressive acceleration or prolonged high-speed operation to protect the new car’s core components.

As someone who frequently tinkers with cars, I believe the engine speed of a new car is best kept at a moderate level, such as between 1800 to 2800 RPM. Since engine components are designed with tight clearances, they require gentle treatment during the break-in period. Avoid aggressive driving above 4000 RPM, as this may cause excessive wear or lubricant failure. When driving a new car, pay attention to the tachometer and engine sound—maintaining smooth operation is key. I've also observed that hybrid or turbocharged models are more sensitive to RPM management, as excessively high speeds can trigger protective mechanisms. Considering fuel economy, finding a balance point between 1500 to 3000 RPM can save a significant amount on fuel costs. Overall, it's advisable to drive gently for the first few thousand kilometers to allow all components to properly break in before driving more boldly. This approach can significantly extend the vehicle's lifespan.

For a new car during driving, it is generally recommended to keep the engine speed within the range of 2000 to 3000 RPM. Avoid sudden acceleration that leads to high RPM to prevent early engine wear. The first few hundred kilometers are the critical break-in period, so gentle driving is advised to protect the components. After that, maintaining this RPM range in daily driving is sufficient for both fuel efficiency and safety.


