What is the recommended speed during a car's break-in period?

[MorganLynn]

The recommended speed during a car's break-in period is between 70 to 80 kilometers per hour. Below are the functions and precautions for the break-in period: Functions of the break-in period: The break-in period is a fundamental process that ensures components fully contact, friction, adapt, and settle. During this period, the car's parts can adjust and enhance their ability to adapt to the environment, wearing down any protrusions on the components. Precautions during the break-in period: Warm up the engine before starting; avoid emergency braking; prevent overloading; avoid long-distance trips; refrain from high-speed driving; use high-quality gasoline; do not remove the speed limiter prematurely; shift gears timely; properly adjust the ignition and fuel supply systems.

[LaCameron]

When I first bought my new car, I was extra cautious. The salesperson told me the break-in period is around 1,500 kilometers, and it's best not to exceed 100 kilometers per hour. I usually set the cruise control at around 90 on the highway, afraid that going faster might damage the engine. Actually, besides speed, you should also pay attention to the RPM—try not to let it exceed 3,000, especially for automatic transmissions; avoid stomping on the gas pedal. The first 500 kilometers are the most critical—avoid hard braking during this time since the brake pads and discs haven't fully seated yet. Also, don't get lazy and use cruise control the whole break-in period; varying your speed occasionally is better for the transmission. Remember to get the first maintenance on time, as metal particles from the break-in period accumulate in the engine oil.

[LeCarmen]

As a veteran driver with over 20 years of transportation experience, I've driven no fewer than ten brand-new vehicles. Speed control during the break-in period is indeed crucial. With modern manufacturing advancements, manufacturers generally recommend maintaining 80 to 100 kilometers per hour. What's more important is adopting gentle driving habits: avoid revving the engine at startup and refrain from forced downshifting when climbing hills. My personal practice during break-in is to drive at low speed for a few minutes after cold starts before accelerating, which ensures even cylinder temperature distribution and better component seating. While some deliberately push for high speeds, it's actually acceptable to occasionally reach 110 km/h in the latter break-in stage - but never attempt reckless speeding during the initial phase.

[OliviaMarie]

We female car owners may pay more attention to details. When I first picked up my car, I specifically went through the manual. The break-in speed varies by car: Japanese cars usually stay under 80 km/h, while German cars allow up to around 100 km/h. The key is to drive smoothly, avoiding frequent rapid acceleration or deceleration. For the first 1,000 kilometers, I drove in the city at around 60 km/h to get familiar with the car's condition. Also, remember not to overload the car, as excessive engine load is not good. Some manufacturers now claim no break-in is needed, but I feel much more at ease with a full vehicle inspection before the break-in period ends, especially checking the tightness of the chassis bolts.