High RPM in new cars (< 1000 miles)

Feb 27, 2020 | 07:35 PM

akramsheira

Thread Starter

Junior Member

Joined: May 2017

Posts: 34

Likes: 4

From: Seattle

2017 C300 Coupe, 2020 GLC 43

High RPM in new cars (< 1000 miles)

Hey guys,

I heard that it's not preferable to increase the RPM in a new car at least for the first 500 miles or 1k. Is that true? And how would that affect the engine.

Thanks.

Feb 27, 2020 | 08:24 PM

19E63s

Member

Joined: Mar 2019

Posts: 148

Likes: 17

2019 E63s

Quote:

Originally Posted by akramsheira

Hey guys,

I heard that it's not preferable to increase the RPM in a new car at least for the first 500 miles or 1k. Is that true? And how would that affect the engine.

Thanks.

There are break in periods. I have never followed them. I don't keep the car long enough lol
If you don't plan to keep the car after the warranty expires, it really does not matter.

Feb 28, 2020 | 09:03 AM

kennys2003

Member

Joined: Jan 2019

Posts: 150

Likes: 36

2003 Cobra / 2018 GLC300 / 2020 GLC63 SUV

Everything in moderation. It is just fine to occasionally hit high RPMs during the break-in period. Vary your speeds. Let the engine and other internals get to operating temp.

Feb 28, 2020 | 07:28 PM

Chrisk03

Super Member

Joined: Feb 2017

Posts: 703

Likes: 136

From: Northeast, USA

GLC43, GTI, X3, Mazda3

Quote:

Originally Posted by akramsheira

Hey guys,

I heard that it's not preferable to increase the RPM in a new car at least for the first 500 miles or 1k. Is that true? And how would that affect the engine.

Thanks.

Yes...read the owner's manual, it's in there. First 1k miles. If you don't follow the rules, your engine blows up.