Question about 2007 Jeep Wrangler Unlimited Rubicon 2 Doors

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2007 jeep wrangler is using approx. 1 quart of oil every 1000 miles. Is this normal?

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No , is the jeep smoking or dripping

Posted on Jun 25, 2009

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Yes this is normal. Many 3.8L engines had the rings installed upside down. Also, the 3.8L is just known to be a burner starting around 60-80k miles.
Chrysler specs allow up to 1.5 quarts per 1000 miles! Can you believe that?
For me I switched to a slightly heavier oil. Living in Florida most oil change places like Jaffy Lube will put in 5W20.
I switched to 10W30 and it is much better. I can go 3000 miles and only need to add 1 quart.
I have 115,000 hard miles including window deep trips through the mud holes. So your mileage may vary ;)
Good luck, and have fun out there .

Posted on Nov 26, 2014

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A half quart in 3000 miles is not cause for concern. Most of them burn a bit less than that, at least during the first 200k miles, but some burn more. It depends to some extent what kind of oil you are using. It will burn more Mobile1 than it will Castrol Syntec, for example.
I have an '04 330 that uses about a half quart in 7k miles between oil changes, and an '04 325 that goes through a quart every thousand miles. I am only a little concerned about the 325. I would not be at all concerned about a half quart in 3k miles.

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2007 jeep rubicon using 1 quart of oil every 1000 miles


If it is not visibly leaking oil - the exhaust should be smoking. If the smoke comes out when you lift off your foot and when you start frost thing in the day, it could be valve stem seals leaking. If it smokes while you drive normally your rings need replacing.

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1 Answer

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Hi:
A quart every 1000 miles is not unusual, but can get expensive if you are using synthetic oil. Have you always used that in this Jeep? Even though synthetic oil is of higher lubricating quality than conventional oil, it is still thinner, or has less viscousity than normal oil too. What this often means is that an older engine with slightly worn valve seals or some engine wear might consume more oil when you use synthetic. This is not a problem, really, as long as you keep tabs on your oil level.

If you want to experiment around, once it gets warmer out, you could try some 20w-50 oil and see if your oil consumption drops, or even try adding some Lucas Oil stabilizer to your next oil change. If this helps you know that part of your consumption is due to the thinner oil you were using.

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under warranty? how many miles? what engine? what kind of driving do you do? what brand and weight of oil do you use? is all this well documented?......I think 1 qt per 800 or 1000 miles is considered normal, but I would talk to the service manager at the dealer about it. theres got to be a problem with that.

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Have you tried running conventional oil and see how much it burns? If it is truely burning that much oil, you have a problem with the rings not seating, or PCV system sucking in too much oil. If it doesn't burn that much with conventional oil, I would stick with that. If it does, you have a bad motor issue.

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