mansfldcowboy

My 2010 jk is burning the hell out of oil. With a little over 3000 miles on the last oil change my oil light came on yesterday while driving. Pulled into a station and almost bone dry. I have noticed it burns more oil between every oil change but this is bs. I only have 59000 miles on it. Anyone else having this problem. I'm sure there's probably a thread already on here just can't find it on my iPhone. Thanks

HeyBob

Oil consumption is a common problem with the 3.8 usually with the earlier production years. Mine personally has never had an issue but I've read people running thicker oils helps. I've run 10w30 the life of my motor with no issues and no excessive consumption. I'm at 51k miles on a 2010.

Flip94ta

It's hot down there in Texas, run 10w30, 5w40 or 15w40. The 40 weights might say they are for a diesel but the will work in your JK too and the have better additives.

Cobb_Sahara

I have a 2010 and finally did my own oil change a few nights ago.... 2qts low. I'll be switching to a thicker mix next oil change to see if that helps

ronjenx

"Almost bone dry", and "2 quarts low"....
Not checking the dip stick once in a while between oil changes?

Ryan0260

Go to the dealer and start an oil consumption test to document your issue. Replace your pcv valve and switch to 5w30 or 10w30

hetkind

nothing that a rebore and a set of rings/pistons won't fix...

kik

This is great advice. 3.8 oil consumption seems to be a problem with engines assembled in Mexico. Your window sticker will indicate Mexico or US. Rings were apparently installed upside down/backwards.

ridelots24

This is what i've discovered looking into my 2010 that is burning oil.

I've replaced the PCV valve and monitored after......sill burning some oil.

When i asked the service manager what will they learn from doing the oil consumption test - he said while trying to laugh...."i'm not sure, that's what the mechanic said to do"

unfortunately i'm just over 38k, so dealer wont help. i've always done oil changes and check levels and never had an issue until i began to tow my trailer this summer......now burning with or w/o trailer.

i contacted a real mechanic who said he can do some diagnostics and a compression test on the engine. if she is in need of a piston ring and valve job, ive read that time and effort to do so would be better spent on engine replacement at that point.

This situation has definitely made me re thing 'its a jeep thing' and recall the several ford pick up trucks ive had over last 20 years with no engine/drivetrain issues. Sorry if my post isnt that helpful or makes a real conclusion, just commiserating on what to do with this 3.8 pig consuming oil....

(The other poster who mentioned Mexican made engines, in another thread i read where Chrysler never made the 3.8 in mexico.)

kik

Not true. Do a search other than the forums and you'll see that there were 3.8 and 3.6 engines assembled in Mexico. There are forum members that have 3.8's and the window sticker indicates that the engines were assembled in Mexico. On certain engines, the rings were improperly installed which "can" cause oil consumption issues.