Is it necessary to drive a new car at high speeds?

[Sá]

New cars do not need to be driven at high speeds. Here is an introduction to some other aspects related to driving a car at high speeds: 1. Driving at high speeds is a supplementary method for running-in a vehicle, but it is not essential. However, driving at high speeds appropriately can benefit the engine's running-in. The new pistons and camshafts inside the engine attempt to work rapidly for the first time, allowing them to have better intimate contact with each other. 2. It allows the transmission gears inside the gearbox to attempt high-speed rotation, making the engagement between the brand-new gears smoother. Driving at high speeds can help the car achieve good power in future driving and smoother gear shifting.

[SadieDella]

I'm absolutely qualified to speak on this matter, having worked in auto repair for twenty years and seen too many misconceptions. Back in the early days, I used to personally take customers' cars on the highway to rev the engines when delivering them, because engine precision wasn't as good then. But it's completely different now. Just the other day, I disassembled a 2023 Nissan Sylphy and found that the cold run-in technology used before leaving the factory made the piston ring fit close to perfect. Last week, I helped an old neighbor inspect his three-month-old car with only 1,500 kilometers on it that had never been on the highway, and the cylinder pressure was 15% higher than the standard value. If you really want my opinion, instead of revving the engine on the highway, it's better to stick to regular maintenance. Just drive gently before the first maintenance, as forcing high revs can actually damage the turbo. Nowadays, even 4S shops don't recommend doing this anymore.

[DanteLynn]

From a materials science perspective, it's completely unnecessary. New car engines complete thermal cycling during bench testing, and cylinder bores utilize plateau honing technology with 40% lower friction coefficient than older vehicles. The critical period is the initial 500km oil film formation phase – short-distance driving actually benefits metal surface adaptation and healing. I've seen test data: for identical engines, normal break-in wear is only 0.002mm more than deliberate high-speed running, a difference that may only become apparent after 100,000km. Conversely, high-speed running risks overheating when the cooling system hasn't fully adapted.

[EliasMarie]

We female drivers really dread dealing with such hassles. My bestie bought a Mini Cooper last year and ended up with turbo warnings after listening to rumors about high-speed running-in. Truth is, modern ECUs are way smarter than us - just avoid maintaining constant RPMs before the first service. Like with my Fit, the salesperson specifically advised against hard acceleration during the first three months. Last time at the nail salon, I heard from the 4S manager that their service records show cars subjected to high-speed running-in actually develop oil consumption issues earlier. Regular quality oil changes are what really matter.