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Old 05-19-2013, 12:29 PM   #61
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I changed my oil on 2013 wrangler 2 door at 3500 miles and it didn't use any oil. Anytime a dealer does work you need to double check their work. Who knows how much oil they put in. I think using that much oil needs to be documented I wouldn't be comfortable with that usage

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Old 05-19-2013, 01:31 PM   #62
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Just had a crazy thought. I am thinking next oil change I am going to scrap the synthetic and buy 1 jug each (same brand) of 5W20 and 5W30 and mix equal parts. Kind of a progression upwards in weight. I will see what happens and if little maybe do a full 5W30 on the following oil change and see. Crazy?

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Old 05-19-2013, 02:21 PM   #63
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Quote:
Originally Posted by MercMan View Post
Just had a crazy thought. I am thinking next oil change I am going to scrap the synthetic and buy 1 jug each (same brand) of 5W20 and 5W30 and mix equal parts. Kind of a progression upwards in weight. I will see what happens and if little maybe do a full 5W30 on the following oil change and see. Crazy?
I'm not a chemist but you may want to check around to see if the 2 different oils will mix together or separate by density. I'd just go to the 5w-30. Actually I went to a 10w-30 high milage penzoil.
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Old 05-20-2013, 03:51 PM   #64
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Just an update. It was suggested by mechanic that maybe add 1/2L of Lucas oil stabilizer and see if it helps. Anyone have experience with this stuff?
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Old 05-28-2013, 08:38 AM   #65
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Received this from Chrysler Canada...

Dear Mr. XXX:

We are sorry to learn of the problems experienced with the oil
consumption in your 2007 Jeep Wrangler, VIN: XXX, and of
the resulting inconvenience.

Oil consumption can vary in each vehicle due to many different
circumstances. There is no standard amount of oil consumption that is
considered acceptable for all vehicles and conditions.

Some of the following are examples under which oil consumption may
increase on a vehicle:

1. during engine break in (up to about 7500 miles)
2. with vehicle age and mileage due to normal engine wear
3. during severe service use (heavy loading, towing, multiple short
trips, taxi, off-road or law enforcement use)
4. during sustained high speed driving
5. with failure to comply with recommended oil type and viscosity
ratings as outlined in the Owner's Manual.

If you feel that the oil consumption on your vehicle is not normal,
please contact your local dealership. In order for any determination to
be made, a supervised oil consumption test must be performed by the
dealership and an evaluation made.

Please be advised that there is no evidence in Chrysler Canada?s records
indicating there is a known issue with the engines or the installation
of the engines in the 2007 Jeep Wranglers.

We note that Recall Campaign J24, Mopar Tow Bar, is outstanding on your
vehicle. Please contact your dealer to arrange completion of this
service, at no charge to you.

We apologize for the inconvenience you encountered, and we appreciate
the opportunity to review this matter with you.





NOTE: Please do not use the 'Reply' function of your email. If you have
a need to respond to this email, please visit us at our reply form (link
provided below). Our system is NOT able to accept any emails at this
address.

For any future communications related to this email, please refer to the
following information:
REFERENCE NUMBER: XXX
REPLY LINK:
https://forms.chryslercanada.ca/cont...php?trk_ID=XXX


Sincerely,

K. Owen (Ms.)

Customer Care Manager
Chrysler Canada Customer Care




Original Message Follows:
------------------------
Brief Description:
2007 Wrangler oil burning issue
Comments:
Hello. I purchased this Jeep in 08/12 privately and know there is no
existing warranty. However after driving 6000 miles (odometer reads
miles) and 2 oil changes I have come to notice that I am burning oil at
the rate of at least 1L/1000 miles. Doing extensive internet research I
see that this is an issue with some Wranglers where the engines were
made in Mexico (rings not installed correctly). I am concerned about
engine repair costs down the road and am wondering what Chrysler Canada
can do for me in this circumstance. Chrysler\'s policy of 1L/1000 miles
being normal makes no sense to me as this excessive burning will clog
the O2 sensors and destroy the catalytic converter in short time. I
appreciate your response to this issue and thank you.



VIN:
XXX
Mileage:
32000
Servicing Dealer/Facility:
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Old 05-28-2013, 01:55 PM   #66
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^^ Mine is under warranty and I see no surprise in their response. If mine starts consuming more than a quart in 1000 miles, I will present it to them for consideration of a possible repair to correct it. They will undoubtedly want to do a consumption test on it. They will verify that it is full, put a die in the oil and mark the dipstick and ask me to come back after a certain number of miles has elapsed on the odometer. It is their usual procedure that they have already informed me of. So, no surprise there.
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Old 05-28-2013, 02:26 PM   #67
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Quote:
Originally Posted by jeep2007 View Post
Looking at my service records , the dealer did replace piston rings(under warranty) on my 3.8 and the oil level was perfect since ..
Wow! As for as labor is involved, that's pretty much of an engine rebuild!
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Old 10-04-2013, 10:25 AM   #68
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I know this post is older but it helped me immensely! Thanks all for your previous posts!
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Old 10-04-2013, 01:47 PM   #69
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Quote:
Originally Posted by 2five22 View Post
Take some of the used oil from a change and submit it to a certified lab for testing. They can tell you in PPM or in a worst case scenario - PPT/T, what metals are in the oil and you can surmise from this whether it is a case of bad rings, bad bearings, a leaking block, etc.
Does adding oil due to consumption effect the results at all?
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Old 10-07-2013, 12:09 PM   #70
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Throw my hat in here. 2011 JKU Sport (the one in my Profile)
I am using Mobil1 5w20 full synthetic oil in every oil change since new and I change it every 6000 miles.
48k miles on it, and it burns 1 quart every 500 to 1000 miles. Did not start doing this until about 38k miles.
I get lifter knock during hard acceleration now, and have a loss of power (Cannot even use 6th gear on flat land).
Have the 5 Year 70k drivetrain warranty.
Dealer is changing my Rear Axle Seals (in Warranty) and is going to "peruse" my oil consumption issue on Tuesday, 10/15/2013
I am sure he is going to say something to me about running 33 inch tires on 3.21 gears. But will let them sort it out and see what they find.

So far I have read spun bearing (assuming crank shaft bearings??), piston rings, and PCV valve issues.
And that this issue is not just a Wrangler issue but on all Chrysler 3.8l
(Guess that's why they only had a 5 year life span before the 3.6L came out)
I am assuming my situation is a little more dire since I have lifter knock and power loss.
Will update with what they tell me.
Will be back to driving my '83 RamCharger for a few days now.
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Old 10-22-2013, 07:49 AM   #71
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Ok, Chryslers answer for my oil consumption...
Dealer Oil, Filter and Lube. Come back in 500 miles and have Dealership check oil.
Talked to the Mechanic, he said he believed it was rings, but any fix like that would require either an engine replacement or at the least a lower end rebuild.
He said "off the record" that most times Chrysler tries to push the issue off until out of warranty stating within "Tolerances". But I have a really good Dealership here who go that extra mile to fix things to bring back customers.
He also said it depends on where the engine was built as to the issues.
The 3.8 built in Mexico has a lot more issues than the one assembled in Trenton NJ, and all Crate and rebuilds come from the Trenton NJ plant.

On the Axle Seals. They were completely covered by my Drive Train Warranty.
They replaced, both bearings, axle shaft rings, axle shaft seals, inspected the rear diff for contamination damage, and flushed and replaced Gear Oil.
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Old 02-24-2014, 06:13 PM   #72
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I am losing 2 quarts every 1000 miles. So I am completely replaces all the oil before each oil change.
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Old 02-24-2014, 06:46 PM   #73
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My BMW M3 went through about a quart every 3,000 miles, running hard and redlining at 8,400 rpm.

I have NEVER had a Wrangler run through oil anywhere close to that. When changing every 3,000 miles, never even low at all. When I pushed to 5,000 (ok with synth) it was still less than a quart low (if at all).

If you're going through oil and not riding the redline, something else is going on.
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Old 02-24-2014, 06:51 PM   #74
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Chrysler ended up replacing the piston rings. They dropped the oil pan and crankshaft and pulled the pistons from the bottom side. They said I had abnormal carbon build up. They replaced them free under my drivetrain warranty.
I have about 3500 miles on it since and I have only had to add about 1/2 quart.
I bought mine second owner. They said the previous owner probably used regular oil and not full synthetic. I have about 15k left on my 70k drivetrain warranty. If it lasts that long a Hemi or a LS is going in next.
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Old 02-25-2014, 08:10 PM   #75
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Um yeah, def. something wrong going on. No valve tapping that I can tell, same power as always (none). That is interesting about the carbon build up. Someone told me to decarbon it with seafoam spray. That is not going to cure a ring issue. Pulling pistons is interesting also, that not to dramatic if pulling from the bottom like that.

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