Sponsored

Break in on gt

Mr whiskers5.0

Well-Known Member
Joined
Sep 2, 2021
Threads
23
Messages
325
Reaction score
237
Location
Ohio
First Name
Anthony
Vehicle(s)
2021 rapid red mustang gt
Is there a break in on a 2021 gt ?
Sponsored

 

velocityblue5.0

Well-Known Member
Joined
Sep 5, 2021
Threads
28
Messages
919
Reaction score
877
Location
new jersey
Vehicle(s)
21 Stang GT Premium, 22 F150 XLT Sport, 07 Tacoma

Dfeeds

Well-Known Member
Joined
Sep 30, 2018
Threads
23
Messages
1,447
Reaction score
1,229
Location
Illinois, US
First Name
Dan
Vehicle(s)
1997 Mustang (5.0 HO swap), 2019 Mustang GT PP1
The engine would probably benefit with a bit of a harder break in but the rear end, transmission, clutch, flywheel, etc could use a more delicate one. I think it was at least 10k miles before my rear end stopped clunking going into first.
 

Sponsored

GregO

Well-Known Member
Joined
Mar 5, 2018
Threads
41
Messages
2,417
Reaction score
1,610
Location
Illinois
Vehicle(s)
S550 GTPP
Last edited:

DougS550

Well-Known Member
Joined
May 18, 2020
Threads
234
Messages
3,429
Reaction score
1,735
Location
Indiana
First Name
Doug
Vehicle(s)
2019 GT Premium A10 PP1 Whipple Stage 2
Everyone has their own opinion, which cannot be confused with facts. If you haven't built or raced cars, stick with the owners manual. For me I didn't follow the manual. I've raced, built engine my hole life. I varied throttle RPM for the first 200 miles, after that I was doing on and off WOT runs for the next 100 miles. That's what I did. No issues, runs great. But this is my car not yours. You need to make these decisions. Good luck
 

Jackson1320

Banned
Banned
Banned
Joined
Sep 26, 2019
Threads
26
Messages
3,057
Reaction score
1,220
Location
California
First Name
Jaxson
Vehicle(s)
2015 mustang gt
You should break in a engine the way you intended to use it. So just drive it like normal
 

Vlad Soare

Well-Known Member
Joined
Jan 21, 2020
Threads
65
Messages
3,168
Reaction score
2,879
Location
Bucharest, Romania
First Name
Vlad
Vehicle(s)
2020 Mustang GT 6MT
There are various opinions as to how hard you should or should not drive it, but one thing's for sure - avoid driving constantly for a long time. Doing hundreds of highway miles on cruise control is an absolute no-no.
 

cactus_kid

Well-Known Member
Joined
Dec 6, 2013
Threads
93
Messages
2,548
Reaction score
2,076
Location
Big Bend Country, TX
First Name
Michael
Vehicle(s)
'21 GT (see sig)
Bed the brakes ! You will have stopping issues otherwise. Also, you will live with noisy pads. My ex wife sounded like brake squeal ........................ :rockon:
Sponsored

 
 




Top