3.8L excessive oil consumption - JeepForum.com

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post #1 of 123 Old 12-05-2008, 01:53 PM Thread Starter
mbehr
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3.8L excessive oil consumption

My '07 4 dr has 24K miles. The oil has been changed regularly at 3K to 3.5K miles. I used to never check the oil because I didn't think a new vehicle would use more than a quart during the oil change interval. Well guess what? This thing is using a quart about every 1300 miles. No leaks, no smoke, and no sign on the plugs. I haven't jumped on the dealer yet other than to call it to their attention at the last oil change a month ago. They said they found no leaks, nothing else. I'm going to take it in tomorrow morning and want the forum's advice.

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post #2 of 123 Old 12-05-2008, 02:20 PM
Prot
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After every oil change, I check the oil level. The reason is because this engine takes six quarts of oil. Most other vehicles need only 5, so it is common for them to short you a quart. If you check it and it is full then check it later and it is low, the oil is going somewhere Does it smell like burnt oil? Is there an accumulation of damp dust anywhere on your engine? How does your antifreeze look? Does your oil look milky or normal?

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post #3 of 123 Old 12-05-2008, 03:09 PM Thread Starter
mbehr
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Checked it after I left the dealer at the last oil change- full. No burnt smell and no milky discoloration. No evidence of a leak anywhere. Round One with the dealer coming up.......Chrysler retained a bankruptcy law firm today. Wonder what that will do to warranties?
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post #4 of 123 Old 12-05-2008, 04:58 PM
tricked919
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I had an oil consumption claim on my 350Z and it was a mess.

I would advise that if you don't have a good relationship with your dealer, go find another one. If you're bone stock under the hood, then you're probably OK, but if you have any mods (hypertech, CAI,...whatever) - get it back to stock ASAP. If you're not leaking, then you've got bad rings or an out-of-round cylinder. You'll probably get a new short-block. I don't think that'll break Chrysler, so I wouldn't worry.
Just stay on the dealer.
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post #5 of 123 Old 12-05-2008, 05:09 PM
242much
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make em put a hemi in.

"The stoke was palpable..."

good grief, just buy the Rubicon.
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post #6 of 123 Old 12-05-2008, 06:16 PM
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Quote:
Originally Posted by mbehr View Post
Chrysler retained a bankruptcy law firm today. Wonder what that will do to warranties?
Sorry to hijack but it may be a good time to sell the extended warranties back!

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post #7 of 123 Old 03-10-2009, 11:04 AM Thread Starter
mbehr
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Dumped the '07 for an '09 with lifetime powertrain warranty.
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post #8 of 123 Old 02-20-2011, 02:04 PM
jeepsuck
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excessive oil use

bought used 2007 Jeep wrangler from dealer had 40K on it. 3 months later I went to change oil at 45,000. I was notified by the oil change place no oil on dip stick. According to the oil change place it was at least 3.5 to 4 quarts low. A week later the main bears on 3 and 5 both spun. I have always owned Toyota and have never ever been down even a half a quart in 5000 miles.
New Engine time. If you own one of these i suggest you keep an I on the oil usage once is starts dump it.
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post #9 of 123 Old 02-20-2011, 03:51 PM
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Quote:
Originally Posted by jeepsuck
bought used 2007 Jeep wrangler from dealer had 40K on it. 3 months later I went to change oil at 45,000. I was notified by the oil change place no oil on dip stick. According to the oil change place it was at least 3.5 to 4 quarts low. A week later the main bears on 3 and 5 both spun. I have always owned Toyota and have never ever been down even a half a quart in 5000 miles.
New Engine time. If you own one of these i suggest you keep an I on the oil usage once is starts dump it.
You went 3 months and 5000 miles without checking the oil?? Seriously?? On a used vehicle??

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THE Conventions of a number of the States, having at the time of their adopting the Constitution, expressed a desire, in order to prevent misconstruction or abuse of its powers, that further declaratory and restrictive clauses should be added: And as extending the ground of public confidence in the Government, will best ensure the beneficent ends of its institution.
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post #10 of 123 Old 02-20-2011, 03:59 PM
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Originally Posted by PanthersFan View Post
You went 3 months and 5000 [miles] without checking the oil?? Seriously?? On a use vehicle??
That seems to be the norm for people today. People start driving without any training on how to take care of their vehicle. When it's suggested checking the oil is part of responsible vehicle ownership, they get indignant, saying they shouldn't have to on modern vehicles.
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post #11 of 123 Old 02-20-2011, 04:01 PM
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We had to add 4 quarts in about 3000 miles ... It knocks on starup too and there's chunks of metal in the oil.

Chrysler says it's normal.

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post #12 of 123 Old 02-20-2011, 05:32 PM
BlueLesPaul2006
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Mine uses about 1 quart for every 1000 miles. But if you use Jiffy lube they will put in up to 2 quarts between changes. Mine runs fine.

OK, then...the hood is not supposed to flop up and down??

Dang, all this time and I thought it was the famous Jeep Wave!! ~bluegrassguitar
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post #13 of 123 Old 02-20-2011, 07:45 PM
07BlackOps
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My Jeep is used and has 58k on it. Doesnt burn a drop. Sorry but most people that buy a new car dont realize the engine needs a 1000 mile break in on it. Vary the RPMs drive fast and slow. As long as you break the engine in and change the oil with a quality filter and quality oil you can get 200k miles out of an engine and it wont leak a drop! I break every engine in this way including my race built engines! The only engine I ever had that burned oil was my Turbochaged Impreza WRX mainly because the turbo blew lots of oil into the exhaust on startup and when high RPM driving but never more then a quart over 3k miles
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post #14 of 123 Old 02-20-2011, 08:00 PM
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Proper break-in won't help those whose rings were installed upside down, or whose rods were installed wrong-side-to.
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post #15 of 123 Old 02-20-2011, 10:26 PM
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Proper break-in won't help those whose rings were installed upside down, or whose rods were installed wrong-side-to.
Well if that happens, then the dealership needs to give him a new motor, or rebuild this one, but it will never be the same! And honestly how often does that actually happen rings get installed upside down or the rods get installed incorrectly mistakes a first year auto body student learns to prevent
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