What is the best oil fore my engien?
Senior Member
Joined: Dec 2011
Posts: 669
Likes: 0
From: Central Arkansas
Year: 1996
Model: Cherokee
Engine: 4.0L
Mobil 1 5w40 turbo diesel. Perfect for this application and pretty much one of the best all around motor oil choices for anything from cars and trucks to mowers, generators and small equipment
CF Veteran
Joined: Sep 2009
Posts: 6,322
Likes: 6
From: Summerville, Ga
Year: 1995
Model: Cherokee
Engine: 2.5 4 cyl.
I've heard Delo 400 or Shell Rotella for a diesel engine. The important thing for a diesel is for it to have the right additives in the oil. I dont know what additives are called for in the 2.5 TD, but i'd say you'd be good if you go with either one that i mentioned. In the diesel world it's been said by a few that the additives (particularly the zinc content) of the mobil 1 and quite a few diesel oils has been lowered and changed around.. But you'll get a 1000 different answers when you ask what oil is best.. Everyone has their own opinion.
Last edited by xj_maniac_newb; Feb 5, 2013 at 12:07 PM.
CF Veteran
Joined: Sep 2009
Posts: 6,322
Likes: 6
From: Summerville, Ga
Year: 1995
Model: Cherokee
Engine: 2.5 4 cyl.
Well you'd probably get a better answer if you went to a diesel forum and asked, the Cherokee diesel wasn't produced near as much in the USA than overseas, which is where a good majority of members of this site are from.. a diesel forum would probably be better at telling you what oil you need based on what additives your engine requires.
i would recomend the shell rotella triple t 15w40 or the shell rotella t6 synthetic blend 10w-30. i work on diesels for a living and these are both great oils. i run the T6 in my 4.0.
Herp Derp Jerp

Joined: Nov 2011
Posts: 18,251
Likes: 17
From: Parham, ON
Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
+1 to Shell Rotella T6. The 5w40 is extremely well received. Mobil1 doesn't have much to offer in comparison except for higher price.
What happened to your last engine that killed it? Aside from being a VM Motori that is
What happened to your last engine that killed it? Aside from being a VM Motori that is
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Seasoned Member
Joined: Oct 2012
Posts: 277
Likes: 0
From: 3 hrs NW of Moab
Year: 1999
Model: Cherokee
Engine: Big 4.0L
I'm on the shell rotella t 15w40 band wagon as well. always used it have had excellent results. 15-40 in the spring 10-30 in the winter I personally stay away from syntetics
Senior Member
Joined: Apr 2009
Posts: 791
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From: Houston Texas
Year: 1996
Model: Cherokee
Engine: I6
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From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
::CF Moderator::
Joined: Aug 2011
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From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
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