• Welcome to Mustang7G!

    If you're joining us from Mustang6G, then you may already have an account here!

    As long as you were registered on Mustang6G as of March 10, 2021 or earlier, then you can simply login here with the same username and password!

GT Break in Procedure

Zig

Well-Known Member
Joined
Jul 21, 2023
Threads
25
Messages
3,096
Reaction score
1,603
Location
Virginia
Vehicle(s)
‘24 F350 cclb drw fx4 6.7ho, ‘24 gt pp, ‘05 c6 f55, ‘01 fatboy, ‘03 sprtstr

Ice392

New Member
Joined
Jun 30, 2024
Threads
0
Messages
3
Reaction score
3
Location
Canada
Vehicle(s)
2024 Mustang GT 5.0
DO NOT baby it, granny it, cruise on the highway at a low RPM, or otherwise be nice to it for the first whatever miles.

We build engines, and this is by far the #1 misconception about a new engine. If you baby an engine it will never break in and it will be just as not broken in at 2,000 miles as it was at 2 miles.

In order for rings to seat you need high cylinder pressure to press the rings against the cross hatch of the cylinder walls, which means you need to get on it, often.

Once an engine is up to temperature it is ready to be beaten on, regardless of how many miles are on it.
I Totally agree, Run it hard once it is up to normal operating temperature.
 

steveo1960

Well-Known Member
Joined
Apr 1, 2018
Threads
42
Messages
766
Reaction score
653
Location
USA
Vehicle(s)
2024 Mustang GT Premium 401a, Auto, AE, Atlas Blue
My opinion is vary speeds, power and so forth. Bottom line is you don't want to get on i95 and cruise 300 miles at a more or less constant 65 mph. I would not push it close to redline for at least 1k miles though.. Just my opinion.
Sponsored

 
 








Top