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Old 04-02-2011, 03:47 PM   #1
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Exclamation 2010 Wrangler Mountain--OIL troubles

ANY one else have an issue with the oil burning from your Wrangler? The dealership says its suppose to burn as it is and Chrysler has not returned my calls...
1 QT. per 1000 mile, after the dealership changed the Oil to a heavier grade...

getting expensive since I drive 60 miles 1 way 6 days a week!

ANY body have some tips/help for me???
Thanks!

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Old 04-02-2011, 04:16 PM   #2
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My '08 doesn't burn any oil-ever, but

How do you know 1qt/1000 miles and what do you measn by, "HEAVIER GRADE" ??

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Old 04-02-2011, 04:30 PM   #3
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Originally Posted by heathersmom View Post
ANY one else have an issue with the oil burning from your Wrangler? The dealership says its suppose to burn as it is and Chrysler has not returned my calls...
1 QT. per 1000 mile, after the dealership changed the Oil to a heavier grade...

getting expensive since I drive 60 miles 1 way 6 days a week!

ANY body have some tips/help for me???
Thanks!
Heavier oil is not a fix - it's, at best, a band-aide.

I'd keep hounding Customer Service and get it fixed while you're still under warranty.
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Old 04-02-2011, 07:06 PM   #4
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You need to take the manifold off. There was a thread here few weeks ago where a gasket leak was discovered in the intake manifold during a tune-up, and was either collecting or burning up in there.

It's possible this is the answer to the JK's mysterious and inconsistent oil consumption.
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Old 04-03-2011, 02:13 AM   #5
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I have a 2010 Mountain and it has 20000km clocked - 30 - 35 degrees Celsius ambient temp where we stay and it has not used a drop of oil since new. Your dealer is on mountain cabbage!
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Old 04-03-2011, 04:50 AM   #6
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Something has to be wrong. That's way to much oil to be going thru. Tou would never need to change your oil, seeing as you would essentially always new oil in the engine. The dealer is full of Sh*T!
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Old 04-03-2011, 08:57 AM   #7
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Volkswagen tried to use the same argument on the 2.0 TSI engine. Then suddenly they changed the design. It's now the 2.0 FSI.

A turbo charged engine will sometimes burn oil, but a normally aspirated engine like the JK 3.8 should not burn that much.

Be patient, professional, courteous, and relentless with your dealer. Give them a couple of chances to resolve it. Then elevate it to a regional Chrysler Rep if they won't resolve it. Patience and persistence is the key.
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Old 04-03-2011, 09:22 AM   #8
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Interesting that this is your very first post. We don't know who you are & if you or your story is legit????
However, giving you the benefit of the doubt, I will give you my thoughts on the subject, keep in mind, I am just a stupid truck driver. I hope you revisit this thread you have created & let us know how the battle is going.

I've read several different posts in threads in other forums about massive oil consumption in the 3.8. I have also read that this motor has been used in other applications with astonishing results. But, evidentaly some of these 3.8L engines have developed a real appetite for oil. Putting heavier oil in a motor is certainly going to lead to premature engine wear.

All car, truck & Jeep engines "use" oil. I will take that argument to my grave. However, the amount should barely be visible on the dip stick at 3000 miles. A quart every 1000 is absurd.

The weight of the oil is determined by the engineers who have designed that particuler engine & have measured all of the tiny tolerances that the oil must freely pass through. A service grunt at the dealership is not an engineer, is not authorized to tell you to deviate from your manuals explicit instruction.

I would go back to putting in the specified oil, document EVERYTHING. Your oil consumption, your conversations with the dealership, anything in writing that is applicable. There is an 800# in the back of your manual for these types of problems. I would call it & get a case number (if you don't have a case number, you have no case!!!) from Chrysler & like the above poster said, be extremely courtious but ballsy, diligent & relentless in you efforts to get it fixed or a completely new motor.

Good Luck!!
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Old 04-03-2011, 10:15 AM   #9
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Interesting that this is your very first post. We don't know who you are & if you or your story is legit????
However, giving you the benefit of the doubt, I will give you my thoughts on the subject, keep in mind, I am just a stupid truck driver. I hope you revisit this thread you have created & let us know how the battle is going.

I've read several different posts in threads in other forums about massive oil consumption in the 3.8. I have also read that this motor has been used in other applications with astonishing results. But, evidentaly some of these 3.8L engines have developed a real appetite for oil. Putting heavier oil in a motor is certainly going to lead to premature engine wear.

All car, truck & Jeep engines "use" oil. I will take that argument to my grave. However, the amount should barely be visible on the dip stick at 3000 miles. A quart every 1000 is absurd.

The weight of the oil is determined by the engineers who have designed that particuler engine & have measured all of the tiny tolerances that the oil must freely pass through. A service grunt at the dealership is not an engineer, is not authorized to tell you to deviate from your manuals explicit instruction.

I would go back to putting in the specified oil, document EVERYTHING. Your oil consumption, your conversations with the dealership, anything in writing that is applicable. There is an 800# in the back of your manual for these types of problems. I would call it & get a case number (if you don't have a case number, you have no case!!!) from Chrysler & like the above poster said, be extremely courtious but ballsy, diligent & relentless in you efforts to get it fixed or a completely new motor.

Good Luck!!
Yes, it is my first post on here, we have never had A JEEP. Just drove our 1995 K2500 to the junk yard yesterday The Jeep was our replacement vehicle and our first ever BRAND NEW car. I own a 2005 Chrysler 300...this is the hubbys drive.
Its so frustrating-- no one wants to say there's a problem and no one knows what else to do. Chrysler calls and ask how we like our new JEEP--when you try to talk anything more than nice with them--they direct us away.
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Old 04-03-2011, 10:20 AM   #10
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BTW: we do have a case number. We have documented from the beginning. The dealerships remedy was going from 5/20 to 5/30 oil. Shortening up to every 3000 mile oil change. We have gone back every 1000 miles and thats how we came up with 1Qt every 1000 miles. When calling Chrysler and other dealerships...we get the same answer. They say ...There is a bulletin out stating that it is "Industry Standard" to burn 1 qt every 1000 miles up to 50,000 miles and then a QT in every 700 miles! That where we are at...
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Old 04-03-2011, 10:25 AM   #11
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They are full of shit!!!
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Old 04-03-2011, 10:38 AM   #12
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Thanx heathersmom-that answers my question, the dealer is telling you about the 1qt/1000miles !!


Quote:
Originally Posted by heathersmom View Post
BTW: we do have a case number. We have documented from the beginning. The dealerships remedy was going from 5/20 to 5/30 oil. Shortening up to every 3000 mile oil change. We have gone back every 1000 miles and thats how we came up with 1Qt every 1000 miles. When calling Chrysler and other dealerships...we get the same answer. They say ...There is a bulletin out stating that it is "Industry Standard" to burn 1 qt every 1000 miles up to 50,000 miles and then a QT in every 700 miles! That where we are at...
There is nothing wrong with using 5/30 oil, I've been isong 5/30 Moble one for over 10K miles and still doesn't use a drop, between chgs (5000 M)-

I am sorry about your eng LEAK !-but it does happen to these 3.8L-RACE ENGINES-it's also how they're driven and brokenin-

Mine rarely IDLES or runs below1500 rpm-I never get outta 2 (auto) town/country and 4lo off-road-the only time I get to "D" is freeway and then no o/d-

Yes my mileage isn't great 15mpg avg and 13mpg off-road

This won't help you now-just my system--good luck

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Old 04-03-2011, 10:48 AM   #13
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I would check out the Lemon Laws in your state and also contact someone from a consumer advocate agency or the state attorney general's office, and see if they can or will help.
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Old 04-03-2011, 11:12 AM   #14
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Originally Posted by heathersmom View Post
Yes, it is my first post on here, we have never had A JEEP. Just drove our 1995 K2500 to the junk yard yesterday The Jeep was our replacement vehicle and our first ever BRAND NEW car. I own a 2005 Chrysler 300...this is the hubbys drive.
Its so frustrating-- no one wants to say there's a problem and no one knows what else to do. Chrysler calls and ask how we like our new JEEP--when you try to talk anything more than nice with them--they direct us away.
My bad, I forgot to say, "WELCOME TO THE FORUM" Lots of smart folks on here with a butt-load of good information. Going up one notch in oil weight is not bad In fact, I think the manual reccomends lighter oil in the colder climates. The dealership is full of crap if they are telling you that it's ok to lose the amount of oil you describe. Sound like you are on the right track. So sorry to hear about this problem. Hope I'm not next in line.

Quote:
Originally Posted by heathersmom View Post
BTW: we do have a case number. We have documented from the beginning. The dealerships remedy was going from 5/20 to 5/30 oil. Shortening up to every 3000 mile oil change. We have gone back every 1000 miles and thats how we came up with 1Qt every 1000 miles. When calling Chrysler and other dealerships...we get the same answer. They say ...There is a bulletin out stating that it is "Industry Standard" to burn 1 qt every 1000 miles up to 50,000 miles and then a QT in every 700 miles! That where we are at...
Good luck!!
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Old 04-03-2011, 11:34 AM   #15
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I've got 20k on mine. Does not burn or leak a drop. The dealer is full of it.
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Old 04-03-2011, 12:22 PM   #16
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I have a 2010 with about 5500 miles. No oil usage at all.
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Old 04-03-2011, 12:30 PM   #17
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I have 34,000k on mine not a drop either, Chrysler are giving you the run around
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Old 04-03-2011, 12:35 PM   #18
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You need to take the manifold off. There was a thread here few weeks ago where a gasket leak was discovered in the intake manifold during a tune-up, and was either collecting or burning up in there.

It's possible this is the answer to the JK's mysterious and inconsistent oil consumption.

This makes a lot of sense. Have the dealer do a cylinder leakdown test. If the cylinders check out good that leaves another source to blame. If you have no signs of leaks that would indicate a problem with the crankcase vent system or a gasket leaking oil into the air intake system like GroundHawg is saying. There would be oil residue in the intake tracks if oil is leaking into the intake.

The oil does not just vanish, there would be signs of it somewhere.
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Old 04-03-2011, 01:30 PM   #19
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Check your PCV valve I've heard that can cause oil consumption in the 3.8.
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Old 04-03-2011, 01:33 PM   #20
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The only possible things I can think of are a bad engine run-in (this seems to be way too common of an issue for me to point the finger at) and simply bad piston rings from the factory.

I'm tellin' ya...that intake leak might go somewhere. Most of us with JK's have never taken that manifold off. The 3.8 might have a bad manifold gasket, similar to the 4.0's rear main seal leak problem.

Only the JK doesn't "mark it's territory."

Mine only burns about 1qt every 6,000-9,000 (which I consider normal) so i can't prove this manifold leak theory. But it makes a lot of sense.

Wait a couple more years for the 07's and 08's to start hitting tune-up time. Best answer I have (based on only 1 case) is a lot of Jeep owners are going to discover an oil leak at that metal gasket when they remove the intake to service the rear cylinders. It doesn't drip because it's staying in the intake, or being combusted....

Phantom leak.

I STRONGLY urge ANYONE that has JK oil consumption issues to remove the intake and see what's going on with the metal gasket. This big mystery could be solved if it's consistent like the 4.0's rear seal.

That oil's going somewhere.
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Old 04-03-2011, 03:55 PM   #21
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I just checked mine and not a drop is gone. 2500 since first oil change. If the dealer continues to tell you that is normal, tell him you will do him a favor and inform his customers that are on the sales floor now so they can know what "normal" is. I think that will get a response.
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Old 04-03-2011, 05:12 PM   #22
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I would think that if it is bad rings the check engine light would turn on due to the oxygen sensors picking up unburnt combustables. This happens on my ram van when I put fuel system cleaner in it. The manifold leak may be the culprit but that is alot of oil so it would have to pool somewhere. Todays engines do not burn oil like that. If you are wondering about your dealer refer to the skidplate issue. They do not have a clue about what they sell.
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Old 04-03-2011, 06:06 PM   #23
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I would think that if it is bad rings the check engine light would turn on due to the oxygen sensors picking up unburnt combustables. This happens on my ram van when I put fuel system cleaner in it. The manifold leak may be the culprit but that is alot of oil so it would have to pool somewhere. Todays engines do not burn oil like that. If you are wondering about your dealer refer to the skidplate issue. They do not have a clue about what they sell.
I don't know if they would or not. They don't for un-burnt fuel. The small amount of oil seeping in past a ring might be too small amount to tip a sensor. Same would go with seeing smoke in the engine bay/exhaust.

My Jeep doesn't even have a light for low oil lol

In reality I have no clue where that oil is going. Personally...I think there has to be either smoke or a drip if you're burning a quart every 3,000. That's a lot of oil to just "disappear" but damn it, where is it? I mean, I get a few drops on my engine and I smell it 100 miles or so. Nobody ever mentioned a smell.

I don't know. It's the great JK riddle.
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Old 04-03-2011, 06:08 PM   #24
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One guy at the shop had this oil burning issue due to an out of round cylinder...but I can't imagine that being the case for all these Jeeps. Another thing is I've heard rings being installed incorrectly, but once again, that's a lot of Jeeps without Chrysler saying something so I don't know
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Old 04-03-2011, 06:14 PM   #25
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Throw this one by your evaluation-

1) Improper breakin technique
2) Compromised oil-wiper rings
3) Variable vlv timing and
4)Exhaust vlv pre-seep

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Old 04-03-2011, 06:27 PM   #26
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So you mean it's a few small issues that are adding up into noticeable oil consumption? That's possible too and a good theory
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Old 04-03-2011, 06:33 PM   #27
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Yea GH and I also think that to many NEW drivers with their NEW JK/JKU-


Quote:
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So you mean it's a few small issues that are adding up into noticeable oil consumption? That's possible too and a good theory
Just BABY that thing for the first 1000 miles and then--IT'S TOO LATE !!

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Old 04-03-2011, 07:05 PM   #28
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Yea GH and I also think that to many NEW drivers with their NEW JK/JKU-

Just BABY that thing for the first 1000 miles and then--IT'S TOO LATE !!

JIMBO
I like the theory as personally I think it's got something to do with those rings, be it poor run-in, or installed incorrectly. I mean, there's only so much crap it could be.

I'm intrigued by that intake manifold gasket leaking as well.

I'd suggest in addition to giving the intake manifold a visual inspection for oil/leaks, do a simple compression test. That'll tell you right there how the rings and valves are.

I'm not sure how many folks change there own oil, but I think these Jiffy Lube shops have a hand in this. I for example change my own oil. I dump in 6 quarts of oil. There are many v6's that get 5. I'm positive at least some of these "oil consumption" cases are because of not filling it to full in the first place.
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Old 04-03-2011, 09:01 PM   #29
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Originally Posted by heathersmom
ANY one else have an issue with the oil burning from your Wrangler? The dealership says its suppose to burn as it is and Chrysler has not returned my calls...
1 QT. per 1000 mile, after the dealership changed the Oil to a heavier grade...

getting expensive since I drive 60 miles 1 way 6 days a week!

ANY body have some tips/help for me???
Thanks!
2010 here and zero oil loss. Something is wrong
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Old 04-03-2011, 09:30 PM   #30
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Yea GH and I also think that to many NEW drivers with their NEW JK/JKU-




Just BABY that thing for the first 1000 miles and then--IT'S TOO LATE !!

JIMBO

A cylinder leak down test would rule that in or out.

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