The Mud Pit > Wrenching

Oil issues

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kirksjeep:
Hey Nate- Shipmate,
        I'd check around really good for a leak.  Our Jeep Liberty was leaking oil at the back of the valve cover gaskets, but it only leaked when running, so no marks in the driveway.  I was going through a quart every 1K until I found the problem.  The Liberty was Jess' before I took it over as a beater, and I am sure she ran it low on oil once or twice.  I have always used Mobil 1 full synthetic since new and added Lucas Oil Stabilizer at every oil change after 100K.  At 231K she is still running great.  The 5.4L Ford Engine is a lot better engine than the 3.7L Dodge motor, so I think you'll be fine.  Give the Lucas Oil Stabilizer a try, it cuts down on burning oil...I run it in my Harley which burned oil since new and now it is only down ~1/4 of a quart every 5K miles. 

Kirk

DirtyJeep92:
From my experience working on these motors I wouldn't be surprised if there is a bad coil even that new. They are stupid common for not throwing a code until it legitimate skips repeatedly. As far as the oil goes. I wouldn't worry about it running that low I had a 5.9 Cummins come back to the shop and I had noticed it was leaking as they parked it. I ending up having to add 9qts to it and they only hold roughly 12 or 13q. Seems to be running fine ever since. I would recommend  using a thicker oil such as 15w-40. Rotella is highly recommended like Chuck had said. It has lots of zinc in it helps keep it from breaking down under high heat situations giving the amount of miles you rack up.

skibum:
If engine sounds good then just run it. Check oil every 1000 miles and change every 3000. It calls for 5W20 but dont recomend over 5W30. I recomend at next oil change to drain oil slowly through paint strainer to see if any bearing material is in there. Yes coils are very common but since misfire counts are not high enough to set a code then dought that would cause oil consumption.
If driving that truck almost 1000 a wk then finding a reliable gas saver for under 5k would be in your best interest. You will get that back in gas savings in less than 2 yrs.

Flex:
Want to say thanks for all the great response. So the consensus is i should get a good MPG car, heres my problem with that, I want to get a TDI for ultimate MPG however i having a hard time finding one is good mechanical/reliable shape in my approx. 5k price range so heres my next question. If you had 5K to spend on a car to get the best MPG and have something that was very reliable what would you buy. Go


--- Quote from: DirtyJeep92 on April 23, 2015, 04:56:12 AM ---From my experience working on these motors...

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So im thinking the same thing probably a bad coil or even just a bad connection. Ill read the ECM and figure out which cylinder it was and put some dielectric grease between the plug and the coil. On a side note it was raining incredibly hard when i was getting the lurching/ misfire and it hasn't come back since. So Im thinking it wasn't oil level related but probably a electrical issue. Either way thanks for ur post.


--- Quote from: skibum on April 23, 2015, 06:30:42 PM ---If engine sounds good then just run it...

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So right now I'm checking oil level every fill up at the pump. I plan on doing this until i get a good idea of how much oil I'm burning. I will also continue to check for wear products every oil change. I will say i feel pretty strongly about not changing the oil every 3K miles. Thats a change every 3 weeks for me. I just cant afford it. Call me crazy but I've done a lot of looking into stretching oil changes and I feel safe going out to 10K as long as i keep my oil topped off.


--- Quote from: kirksjeep on April 22, 2015, 06:20:16 AM ---Hey Nate- Shipmate...

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Good to hear from ya Kirk. I really like the idea of lucas oil stabilizer i plan on adding some once i get a handle on what my oil consumption rate is. Then when I add it i will know how well it worked. I just don't want to throw it in now since i don't have a initial value.

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