Go Back   Jeep Garage - Jeep Forum > Jeep Platform Discussion > Grand Cherokee SRT - WK2

Join Jeep Garage Today
Reply
 
Thread Tools Display Modes
 
  #1  
Old 05-24-2012, 04:09 PM
Premium Member
My Jeep: 2012 6.4L SRT8 WK2
 
Join Date: Feb 2012
Location: Redding CA
Posts: 222
Thanks: 3
Thanked 2 Times in 2 Posts
Rep Power: 1235
radbushi has a reputation beyond reputeradbushi has a reputation beyond reputeradbushi has a reputation beyond repute
Engine Break-In

This has prob been covered but I couldn't find it. Manual says:
Drive moderately during the first 500 miles (800 km).
After the initial 60 miles (100 km), speeds up to 50 or
55 mph (80 or 90 km/h) are desirable.

Are they saying to drive under 50 mph for the first 60 miles?
Thanks

__________________

__________________
Reply With Quote
  #2  
Old 05-25-2012, 09:01 AM
Escape's Avatar
Senior Member
 
Join Date: Jul 2009
Location: Michigan
Posts: 1,911
Thanks: 0
Thanked 26 Times in 25 Posts
Rep Power: 113247
Escape has a reputation beyond reputeEscape has a reputation beyond reputeEscape has a reputation beyond reputeEscape has a reputation beyond reputeEscape has a reputation beyond reputeEscape has a reputation beyond reputeEscape has a reputation beyond reputeEscape has a reputation beyond reputeEscape has a reputation beyond reputeEscape has a reputation beyond reputeEscape has a reputation beyond repute
Re: Engine Break-In

There are 2 schools of thought on this:

1. Baby it for the first 500.
2. Drive it just like normal.

In the manual they are saying after the first 60 miles a nice highway trip would do the Jeep good.

I prefer 50 miles of nice driving then drive it like you stole it every once in a while to give it a bit of exercise.

If you find it becoming sluggish after a few days disconnect the battery over night. It erases the adaptives that happen with city/heavy traffic driving. The Jeep will learn to be lazy with to much slow take-offs and city driving.
__________________

__________________
[SIGPIC][/SIGPIC]
Forged, Stroked, Blown, Bottle Fed & More
Reply With Quote
  #3  
Old 05-25-2012, 12:23 PM
Kadonny's Avatar
Member
 
Join Date: Oct 2011
Posts: 153
Thanks: 12
Thanked 7 Times in 6 Posts
Rep Power: 1241
Kadonny is on a distinguished road
Re: Engine Break-In

I did a 500 mile break in before I started to really jump on it.
__________________
Reply With Quote
  #4  
Old 05-26-2012, 11:00 AM
Member
My Jeep: 2012 6.4L WK2
 
Join Date: Aug 2011
Location: Kuwait
Posts: 47
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 1188
SLtAR is on a distinguished road
Re: Engine Break-In

i did around 1000mile then started to push it to its limits, the car is just fine but still having the rear clunking even after applying the updates other than that its just perfect
__________________
Reply With Quote
  #5  
Old 05-28-2012, 01:43 AM
Member
My Jeep: 2005 4.7L WK
 
Join Date: Aug 2011
Location: STL
Posts: 53
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 1199
Mr Chill is on a distinguished road
Re: Engine Break-In

I don't really get gentle break-in periods... Whats the first thing performance engines do after being assembled? Get on a dyno and show what they've got.

Seems to me if you want rings to seat properly you need them to get warm and snuggly with the cylinder walls as soon as possible.

That said... If I were fortunate enough to take ownership of a new 6.4 Jeep, that 500mi break-in period would probably be up before I got home from the dealership
__________________
[SIGPIC][/SIGPIC]
Reply With Quote
  #6  
Old 05-29-2012, 07:38 AM
Schleprock's Avatar
Member
My Jeep: 2010 6.4L SRT8
 
Join Date: Feb 2011
Location: MD/DE
Posts: 950
Thanks: 19
Thanked 51 Times in 39 Posts
Rep Power: 2444
Schleprock has a reputation beyond reputeSchleprock has a reputation beyond reputeSchleprock has a reputation beyond reputeSchleprock has a reputation beyond reputeSchleprock has a reputation beyond reputeSchleprock has a reputation beyond reputeSchleprock has a reputation beyond repute
Re: Engine Break-In

unless it's rebuilt rotary engine, break-in is rubbish.
__________________

__________________
RJ
2014 Redline Pearl Grand Cherokee SRT8

2014 Granite Crystal Durango R/T
2013 Grabber Blue Shelby GT500
(traded in) 2012 Mineral Gray Grand Cherokee SRT8, 2010 Bright Silver Grand Cherokee SRT8
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
You better break in your TC right!! mr.jason Grand Cherokee SRT - WK2 4 05-25-2012 12:22 PM
Break in? HOOCH Grand Cherokee - WK2 - 12 03-22-2012 09:12 AM
5.7 Hemi Engine Break-In Oil Change Roaster Boy Tech Tips/DIY/How To 13 01-17-2012 10:22 PM
Break In Engine felipito Tech Tips/DIY/How To 10 11-06-2011 08:21 PM
dyno results before engine break-in mandan007 Performance Modifications 4 12-22-2009 12:03 PM

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 03:12 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Copyright 2012 - JeepGarage.Org
The Jeep Grand Cherokee Owners Community