This is a poll for the JK 3.8L V6 and it's engine longevity. Engine problems so far?
 

I was wanting to do a poll for the 2007-2011 JK Wrangler. I'm curious how many miles/life of these 3.8L V6s before they croak. Please share the odometer reading, and if you've had any problems from the engine; or perhaps something else. I put this poll under stock but was debating the modified board since I, and others upgrade their Jeeps. I'll start off with mine: 2007-55K=No problems. fwbb

27k to be exact and no problems so far.

Just rolled 15k. Already eating oil.

71,000 miles, no problems at all with only preventative maintenance done. 2007 Unlimited, 33's with some other basic mods. Just completed a 4,400 mile round trip from Florida to the Grand Canyon and Ouray Colorado Jeep Jamboree in late September. MBRP cat back and CAI are only engine mods.

Just oil usage

My '09s done a shade over 40K miles; runs smooth & reasonably quiet (except for that annoying heat-shield buzz) with no issues. About 80% city & the rest highway/offroad.

Been running 5W30 Castrol Edge since new, oil changes with Mopar filter every 3-4K miles; drinks about a third of a quart between changes.

34k, no problems

Actually drove me to get rid of it
 

At 1012 miles the computer died

At 26013 I noticed it was almost out of oil, dealer said it was due for a oil change and they did a oil change.

28005 I check oil to only find it had 3 quarts left, brought it in and they said it is normal and gave it another oil change.

32000 oil change and guess what, low by 2 quarts of oil

35700 and I'm at the dealer as the oil light came on and they found nothing and changed the oil

39000 and same problem but now its a timing cover issue. Do you think this problem has existed awhile? I refused to pay top dollar from the dealer and had a freind buy it for me who was their master mechanic at a different dealership.

42000 ball joints are toast in the front and had to replace all 4

49000 ball joints are going again and had to replace again.

Not the kind of experience I wanted on such a awesome vehicle... I really miss it and have the bug again and might consider the 2012 but I need to wait until sometime next year.

Needless to say I traded it in for a convertible Mercedes CLK350 to hold me over...

Replaced engine at 59k due to oil consumption and leaking head gasket.

Wow that's sad!