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Unread 12-10-2012, 09:39 AM   #121
Paio2012
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2012 JK Wrangler 
 
Join Date: May 2012
Location: Nova Lima, MG - Brazil
Posts: 44
I was planning to do an oil analysis on my 1st oil change on my 2012 JK. I wrote Chrysler and asked them if I could identify any potential issues on the Pentastar cylinder head by doing an oil analysis and they told me I would not be able to identify anything. I thought I was going too far and obsessive. Now I see I was not! I will do an oil analysis next time when I will make my second oil change.

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Unread 12-10-2012, 11:54 AM   #122
white_2003
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1971 CJ5 
 
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Quote:
Originally Posted by 1222

I know compulsive all too well, I’m one too. I hope you didn’t take offence with my statement it was more of a ribbing than anything else.
Nope none taken. My dad is the one that taught me to do this ( we check robot gearboxes for impending doom). We live in America and everyone is entitled to his or her own beliefs no matter how compulsive they are.
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Unread 12-15-2012, 02:50 PM   #123
captnrick
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2012 JK Wrangler 
 
Join Date: Oct 2012
Location: santee, CA
Posts: 4
Pentastar

5K on my 2012 wrangler and I totally love it. Have not had the slightest problem.
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Unread 12-16-2012, 05:31 AM   #124
pentastarguy
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2012 JK Wrangler 
 
Join Date: Dec 2011
Location: sussex, new jersey
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now at 20000 miles, no problem what so ever.
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Unread 12-16-2012, 10:51 AM   #125
mrwhipple
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2012 JK Wrangler 
 
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Location: LA
Posts: 437
15,000 miles and smooth as silk.
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Unread 12-17-2012, 08:59 PM   #126
cdnroadwarrior
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2012 JK Wrangler 
 
Join Date: Nov 2011
Location: Cantley, Qc
Posts: 152
16 000 miles and running strong no issues with the engine at all. I switched to synthetic oil at the first oil change and I just did my second.
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Unread 12-19-2012, 07:13 PM   #127
GSHOOP
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Join Date: Jul 2012
Location: mapleton depot, pa
Posts: 11
14500 miles and I have a misfire code for cylinder6. Going to the dealer tmrw.
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Unread 12-19-2012, 07:14 PM   #128
xtremzj
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1998 ZJ 
 
Join Date: Aug 2012
Location: milford, nh
Posts: 661
Lol at all the people that have no problems. I only have one word for you if you have a 3.6 with old head.


YET.
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Unread 12-19-2012, 08:13 PM   #129
aztec_doc
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Patiently waiting, mine was built in Nov 2013
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Unread 12-19-2012, 08:17 PM   #130
xtremzj
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Believe it or not the hardest part of the job is taking off the valve covers
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Unread 12-19-2012, 08:22 PM   #131
bhoch
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2012 JK Wrangler 
 
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Quote:
Originally Posted by aztec_doc
Patiently waiting, mine was built in Nov 2013
Cool. Time travel. Heh
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Unread 12-19-2012, 09:51 PM   #132
JK4doors
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2012 JK Wrangler 
 
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Location: Jonesboro, AR
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Quote:
Originally Posted by aztec_doc
Patiently waiting, mine was built in Nov 2013
Good to know the world still exists beyond Dec 21st or 22nd or whenever the hell it's supposed to end......
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Unread 12-19-2012, 11:31 PM   #133
BadTrainDriver
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Location: Dublin, Ohio
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Quote:
Originally Posted by xtremzj View Post
Lol at all the people that have no problems. I only have one word for you if you have a 3.6 with old head.


YET.
That's a pretty bold statement...care to elaborate?
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Unread 12-20-2012, 08:03 AM   #134
Godholio
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2012 JK Wrangler 
 
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Location: West Haven, UT
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There's a casting flaw in the early heads. He's assuming all heads were created equal(ly poorly).
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Unread 12-20-2012, 01:14 PM   #135
GSHOOP
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Just dropped off my jeep. They have the parts in stock. I will have it back tmrw.
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