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Unread 02-14-2009, 11:26 AM   #1
AuburnXJ
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Burning serious oil???? help

i have a 93 XJ (4.0) w/ 170k+ on the dial, and my jeep is burning oil pretty good. any ideas about what the problem could be?

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Unread 02-14-2009, 11:32 AM   #2
Kenbo-Slice
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Bad piston rings maybe.... When was the last oil change, who did it, and how thin was the oil. Oil that is too thin (especially on a higher milage vehicle) will be prone to burning up quick. You may just be able to use thicker oil. I would get more oppinions though... I melt metal together for work, I'm no mechanic.
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Unread 02-14-2009, 11:43 AM   #3
AuburnXJ
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its 10W 30... and it has been a while since the oil got changed
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2001 Jeep Cherokee Limited - DD
4.5" Rusty's SA Kit-32x11.5 BFG AT-Super 44 w/ turndown-JKS Discos

1993 Jeep Cherokee - Trail Rig
6.5" Rusty's LA kit-33x12.5 TSL-Pacesetter Header w/Delta 40-JKS Discos-Tom Woods Driveshaft-Advanced Adapters SYE-Custom CAI
Coming This Summer: 44/9", 4 link rear, and 37s
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Unread 02-14-2009, 11:52 AM   #4
Kenbo-Slice
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like I said, I'm not a mechanic but I would try changing it, and running maybe a 20W 30. That may do the trick.
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Unread 02-14-2009, 12:06 PM   #5
AuburnXJ
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ok cool. thanks man
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2001 Jeep Cherokee Limited - DD
4.5" Rusty's SA Kit-32x11.5 BFG AT-Super 44 w/ turndown-JKS Discos

1993 Jeep Cherokee - Trail Rig
6.5" Rusty's LA kit-33x12.5 TSL-Pacesetter Header w/Delta 40-JKS Discos-Tom Woods Driveshaft-Advanced Adapters SYE-Custom CAI
Coming This Summer: 44/9", 4 link rear, and 37s
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Unread 02-14-2009, 12:07 PM   #6
Kenbo-Slice
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No problem.
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Unread 02-14-2009, 12:07 PM   #7
XJLI
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x2 on the thicker oil. I'm burning 5w30 like crazy bc i need to run it in the winter (lots of short trips to class in the morning). 15w40 diesel will be going back in in a month for the warmer weather. I barely burned that thicker stuff.
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Unread 02-14-2009, 03:03 PM   #8
CheapJeep88
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Hey I have kinda the same question about oil. I just recently changed my oil in my 88 cherokee with 186k and now all the sudden my valves will tap and its really bugging me. It never did it until I changed it.. So do you guys recommend running thicker oil in and if so what is my best bet..
Thanks!
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Unread 02-14-2009, 06:43 PM   #9
tjwalker
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Quote:
Originally Posted by AuburnXJ View Post
i have a 93 XJ (4.0) w/ 170k+ on the dial, and my jeep is burning oil pretty good. any ideas about what the problem could be?
It might be a good idea to find a good compression gauge and run a compression test to give you more information about the mechanical condition (rings, etc).

Keep fresh oil in it; old oil has a tendency to burn up a bit quicker in high mileage engines.

Do you have any evidence of oil in your air cleaner box? If you do, search for BLOWBY.
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