How many have Pentastar engines that are OK? - Page 2 - JeepForum.com

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post #16 of 516 Old 07-18-2012, 12:26 PM
MrFusion
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2012 JK Wrangler 
 
Join Date: May 2012
Location: Columbia
Posts: 422
No problems with mine. A little over 6K miles so far.

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post #17 of 516 Old 07-18-2012, 12:28 PM Thread Starter
devilsfiddle
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2008 JK Wrangler 
 
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Location: Boston
Posts: 362
Anyone get one in MASSACHUSETTS at Central Chrysler in Norwood?

JK 08 X
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post #18 of 516 Old 07-18-2012, 12:46 PM
Scormunch
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2012 JK Wrangler 
 
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Location: Norwell
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Mine (Aug 11 build) sits at 12,000 miles exactly. Quiet ticking equal volume from all sides of the engine, it sounds very similar to my Civic SI so I'm assuming lifters/injectors/something normal. With 33x12.5's, 6spd and 3.21's I have a lifetime average of 20.8 mpg, and with every single fuel receipt since new I'm keeping track of any MPG loss (nothing so far, it's actually getting better with age).
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post #19 of 516 Old 07-18-2012, 01:40 PM
Stewie Griffin
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2012 JK Wrangler 
 
Join Date: Oct 2006
Location: Calgary, AB
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No problems with my Rubi. Going in for a second oil change on friday and have 13k km's on the odometer

Current:
2014 JK Rubicon
Past:
'01, '02, '04 TJ Saraha, '06 TJ Rubicon, '12 JK Rubicon
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post #20 of 516 Old 07-18-2012, 03:30 PM
Scott123
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My 2012 JKUR is getting one of the cyl heads replaced now. It has 21,000 miles and putting out P0304 code. I am concerned with them replacing only one head. Also my MPG is 15.3.

Last edited by Scott123; 07-18-2012 at 06:12 PM.
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post #21 of 516 Old 07-18-2012, 03:34 PM
cam36
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Location: Lindenhurst, New York
Posts: 291
Quote:
Originally Posted by Scormunch
Mine (Aug 11 build) sits at 12,000 miles exactly. Quiet ticking equal volume from all sides of the engine, it sounds very similar to my Civic SI so I'm assuming lifters/injectors/something normal. With 33x12.5's, 6spd and 3.21's I have a lifetime average of 20.8 mpg, and with every single fuel receipt since new I'm keeping track of any MPG loss (nothing so far, it's actually getting better with age).
Haha I too had a civic si, I have 6 speed and 3.21s how is the power loss with the 33s? I wanna run them and I'll eventually throw a set f 4.10s in there

2012 Jk Sport S 6 speed
4.56s Detroit Trutrac rear
37x12.50 Nitto Trail Grapplers
3inch BDS w/ bilstein 5100s
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post #22 of 516 Old 07-18-2012, 03:37 PM
mrwhipple
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2012 JK Wrangler 
 
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Location: LA
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9000 miles and running smooth so far.

silver jkur
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post #23 of 516 Old 07-18-2012, 03:58 PM
awinski
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Location: Gap
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ordered mine in may, put on 2500 miles so far not a single problem, huge difference from my tj
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post #24 of 516 Old 07-18-2012, 03:59 PM
Scormunch
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Quote:
Originally Posted by cam36

Haha I too had a civic si, I have 6 speed and 3.21s how is the power loss with the 33s? I wanna run them and I'll eventually throw a set f 4.10s in there
I don't want to get off topic, but it's not bad at all. The power loss is definitely noticeable, but I do a lot of highway driving and typically cruise in 6th at 65, 1600rpm or so. SE Mass is pretty flat and the speed limit is 60 so I have no trouble keeping up/passing traffic. The worst part is getting it moving in 1st without being too hard on the clutch, so if I'm out of the beach (a few times per week) I use 4L.
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post #25 of 516 Old 07-18-2012, 07:06 PM
NWrunr
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Location: Wilsonville
Posts: 139
I bought mine back in sep 2011, it has 14k on it and it has been flawless
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post #26 of 516 Old 07-18-2012, 07:26 PM
Matoskah
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9,000 miles! Enjoying the ride! Crush Orange JK 2door.

traillizardsjeepclub.com or visit us on facebook
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post #27 of 516 Old 07-18-2012, 07:33 PM
Greenway
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28,000 miles on mine. It's ticked since I bought it. But no problems other than that.

2012 Unlimited Rubicon Cosmos Blue
The small things that you come across everyday, The norm that's overlooked until it is unseen, then when that comes you miss life, one thought, one smell, one sound can take you back home, then you realize your a thousand miles away, and then you get sick....
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post #28 of 516 Old 07-18-2012, 07:55 PM
Butterjeep
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2015 WK 
 
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Location: Edgewater
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2000 miles on mine and it's running great so far. I plan on changing the oil every 20k miles or so.


Just kidding.

2014 Mustang GT Track Pack
2015 WK2 Limited 4x4
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post #29 of 516 Old 07-18-2012, 08:59 PM
73azbronco
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2013 JK Wrangler 
 
Join Date: Mar 2012
Location: scottsdale
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4000 miles, runs fine, no tick, some knock for two seconds on startup after sitting three days, gets crappy mileage, 15mpg. Running synthetic oil.
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post #30 of 516 Old 07-18-2012, 10:17 PM
Jeepjet
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Location: Mashpee, Mass
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Quote:
Originally Posted by devilsfiddle View Post
Anyone get one in MASSACHUSETTS at Central Chrysler in Norwood?
No sir, Ohara Motor's on Cape Cod 13K no problems, build date 10/11

2012 JK Sport, Deep Cherry Red , 3.6 Penastar, 5 spd. auto, 3:21's, 285/70x17 DuraTrac's , Teraflex leveling kit, U.S. Alloy 1.5 spacers, ACE rock sliders, Rugged Ridge front dif skid, quadratec mats, K&N element,+80 headlamps...
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