How do I identify "bad" engines in oil consuming 07-08 JK jeeps?
12-22-2013, 01:49 PM
#41
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I have an 08 that is burning 2 qrt in 5,000 miles synthetic I don't have a knock in my engine that I can tell and I haven't pulled the plugs yet but I am getting ready to change Pcv valve , plugs, and wires i have black stuff on my tail pipe if i run my finger around the edge should this fix it or is there more i need to do?
12-30-2013, 06:21 PM
#43
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I have an 07 and have just recently been smelling some oil burn when I start mine up, and it was extremely low at the last oil change. After reading this thread, haven't thought about the tailpipe, but it is a little sooty as well as the muffler. I have a little left on the extended warranty, but not very much faith in it being fixed, or even diagnosed for that matter...
04-18-2014, 04:10 PM
#47
JK Newbie
I owned a 2008 that didn't even use a 1/2 quart between oil changes , I traded it in on a 2010 , At 25000 in spun a connecting rod bearing due to oil consumtion ( oil changed every 3000 at dealership .After 6 weeks at dealership New long block installed and still going through a quart every thousand miles. Not very happy, They have to fix for 10 years, I'm sure jeep will be gone by then, or at least a 6.2 swap. Good luck on your search
04-18-2014, 06:38 PM
#48
JK Super Freak
I have a 08 jku that was using oil and i Changed the PVC valve and now its good. now i have 136,k on it and i mite have to add an 1/8 to 1/4 quart of oil.still using 5/20 wt.