newbie here, what kind of oil to use?

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Nov 4, 2012 | 01:52 AM

freedomjesse

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Member

Joined: Oct 2012

Posts: 103

Likes: 1

From: evergren, co

Year: 1999

Model: Cherokee

Engine: 4.0

newbie here, what kind of oil to use?

I live in evergreen, Co so its freezing every night. I've heard rotella is great in these 4.0 s but what is the general consensus on what's best? 99 with 130k.

Nov 4, 2012 | 01:08 AM

Bustedback

CF Veteran

Joined: Feb 2010

Posts: 12,367

Likes: 23

From: Oroville, CA

Year: 1995

Model: Grand Cherokee

Engine: 4.0 with all of the noise and clatter

Slippery oil works best in these engines.

Nov 4, 2012 | 01:10 AM

TABonifacio

Seasoned Member

Joined: Nov 2011

Posts: 289

Likes: 0

From: West Warwick, RI

Model: Cherokee

Engine: 4.0L High Output

I use Mobil 1 10W30 w/ a Wix Filter.

Nov 4, 2012 | 01:27 AM

mrfajita

CF Veteran

Joined: May 2010

Posts: 3,405

Likes: 2

From: Fort Collins, CO

Year: 1996

Engine: 4.0L HO

Rotella T5 syn blend 10-30 with a wix filter.

Nov 4, 2012 | 09:07 AM

KotaKid287

Seasoned Member

Joined: Dec 2010

Posts: 299

Likes: 0

From: Onancock, VA

Year: 1990

Model: Wagoneer

Engine: 4.0

A 4.0L would last half a million miles on 80W-90 gear oil lol, imho the brand of oil isn't that big of an issue as long as its there and changed regularly. With 335,000mi on mine and a previous owner that neglected it BADLY I'm running Super Tech or Castrol 20W-50 whichever is cheaper and a Mopar MO-090 filter. I haven't tried the Rotella 15-40 that many here seem to like due to the Zinc content, but tried a different 15-40 when I first got the Jeep and it didn't like it lol.