Engine Break-in Period
Thread Starter
Drifting
Joined: Jul 2002
Posts: 1,855
Likes: 0
From: Cocoa Beach FL
Engine Break-in Period
I just installed a ZZ4 and have about 100 miles on it. My question is what is the break-in period? I know GM says 500 miles but I thought I would ask you all. I have been babying it pretty much, should I continue to do that or is it OK to burn rubber now? Just wondering what's best for longevity and performance of the new engine.
THANKS!
THANKS!
Safety Car
Joined: Jan 2000
Posts: 4,143
Likes: 0
Re: Engine Break-in Period (Mystery Machine)
500 is ok for being 'easy' on it......
But I'd say 1000 miles is much safer for the rings to properly seat.....make sure you drive at different speeds (a lot of in-town driving works best). :cheers: :cool:
But I'd say 1000 miles is much safer for the rings to properly seat.....make sure you drive at different speeds (a lot of in-town driving works best). :cheers: :cool:
Le Mans Master
Joined: Aug 2000
Posts: 6,362
Likes: 7
From: Brazos TX
Cruise-In IV Veteran
Cruise-In V Veteran
Re: Engine Break-in Period (Mystery Machine)
I'm with Verskel, 500 miles to be nice to it. After that you can lean on it harder and spin the tires a little. I would say you can run it to redline in first gear with little worry but I wouldn't pull thru all the gears at WOT (maybe let off a little early in the other gears). At 1000 you can burn all the rubber you want.
Team Owner
Joined: Jul 2001
Posts: 182,997
Likes: 88
From: Lakeland, FL
Cruise-In IV-V-VI-VII-VIII Veteran
St. Jude Donor '03, '06, '17
Re: Engine Break-in Period (Mystery Machine)
I took it relatively easy for the first 1000 miles - even though my engine builder recommended only 500 miles as break in perios...
:cheers:
Olivier
:cheers:
Olivier
Team Owner
Joined: Dec 1999
Posts: 26,555
Likes: 257
From: Florida
2021 C2 of the Year Finalist - Modified
C2 of the Year Finalist - Modified 2020
C2 of Year Finalist (performance mods) 2019
St. Jude Donor '03 thru '26
Re: Engine Break-in Period (GrandSportC3)
Did you guys use synthetnic oil from the beginning? My engine builder is telling me to go 5000 to 6000 miles with standard oil. :confused:
