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02-24-2010, 09:50 AM

Mosescase

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Location: Near Fayetteville NC

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Year: 1993

Model: Cherokee

Engine: 4.0

Oil

I Just got my jeep just replaced the rear main seal and was wondering what kind of oil everyone out there uses and why.

Here are my conditions i have a 1993 with 135K mostly a DD but it will see off road action. Any info would be appericated.

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02-24-2010, 09:54 AM

McRay

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Year: 1996 & 2001

Model: Cherokee (XJ)

Engine: 4.0

I use Super Tech 10W 40 with Fl-1a motorcraft filter ran lots of miles no problem.

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02-24-2010, 10:28 AM

fantic238

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Year: 1988 limited

Model: Cherokee

Engine: 4.0 litre

depending on how your oil pressure is at idle, you go from 10w40 to 20w60.

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02-24-2010, 11:07 AM

Soldat

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Location: Michigan

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Year: 2000

Model: Cherokee

Engine: 4.0L

I have been putting some thought into this too. Unfortunaly, I am not a mechanic because I would know the answer if I was, but I am not sure what oil is truely the best.

I think next oil change I will be using either Mobil 1 or Castrol GTX and a Mobil 1 filter.

I am currently running valvoline 10w40, but will probably switch to 10w30 to see how it runs.