Changing gear oil

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Feb 20, 2013 | 04:10 PM

Jtabor24

Thread Starter

Newbie

Joined: Feb 2013

Posts: 24

Likes: 0

From: Winchester KY

Year: 1998

Model: Cherokee

Engine: 4.0

Changing gear oil

Im getting ready to clean out the front and rear diff on the 98 cherokee and i keep finding diffrent options of gear oil.. Does it really matter which i use? 85-90 or 75-140

Feb 20, 2013 | 04:11 PM

ZINGGG

CF Veteran

Joined: Oct 2011

Posts: 4,440

Likes: 3

From: Seal Beach, CA

Year: 1996

Model: Cherokee

Engine: 4.0 HO Straight Six

If you tow anything, go 75-140.

If you don't, you're good with 75-90 or around there.

Feb 20, 2013 | 05:38 PM

Jtabor24

Thread Starter

Newbie

Joined: Feb 2013

Posts: 24

Likes: 0

From: Winchester KY

Year: 1998

Model: Cherokee

Engine: 4.0

yeah i haul a mowing trailer haha thanks.

Feb 21, 2013 | 06:37 AM

Jtabor24

Thread Starter

Newbie

Joined: Feb 2013

Posts: 24

Likes: 0

From: Winchester KY

Year: 1998

Model: Cherokee

Engine: 4.0

I've got 75-90 gear oil on Tap here at work. Think that will be alright for front and rear?

Feb 21, 2013 | 08:13 AM

salad

Herp Derp Jerp

Joined: Nov 2011

Posts: 18,251

Likes: 17

From: Parham, ON

Year: 1999

Model: Cherokee

Engine: 4.0L OBD-II

Front's fine but you should really use the heavier spec for the rear

Feb 21, 2013 | 10:05 AM

playbass

Senior Member

Joined: May 2012

Posts: 602

Likes: 13

From: Salt Lake City, UT

Year: 1998

Model: Cherokee (XJ)

Engine: 4.0

Quote:

Originally Posted by salad

Front's fine but you should really use the heavier spec for the rear

So you're saying go with 75-140 even if you don't tow anything? I've been using 80-90 so far.

Feb 21, 2013 | 11:48 AM

ZINGGG

CF Veteran

Joined: Oct 2011

Posts: 4,440

Likes: 3

From: Seal Beach, CA

Year: 1996

Model: Cherokee

Engine: 4.0 HO Straight Six

No, you want 75-140 if you do tow. You'd be fine with 80-90 if you don't tow anything. But the OP said he does tow sometimes

Changing gear oil

Changing gear oil

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