First oil change
Seasoned Member
Joined: Feb 2012
Posts: 312
Likes: 0
From: Kentucky
Year: 2000
Model: Cherokee
Engine: 4.0
Another nugget of Valvoline Oil info, the NextGen Oil they sell now is 50% post consumer oil. Kinda cool in certain respects.
CF Veteran
Joined: Oct 2011
Posts: 4,440
Likes: 3
From: Seal Beach, CA
Year: 1996
Model: Cherokee
Engine: 4.0 HO Straight Six
Originally Posted by DieselD
I youtubed "fram oil filters " and found a video of a guy showing the internals of an orange fram a Napa standard a Napa gold and a k&n. The only difference between Napa gold and standard was the gold having more pleats in the filter. The k&n was the best, most pleats solid drain back valve. The fram now that kinda scared me. Least pleats. Rubber drain back and cardboard end caps. This endcaps are probably why my fram filters were heavier when spent than others. They're soaked in oil! That video makes me want to buy k&n.
http://minimopar.knizefamily.net/oil.../opinions.html
Also, click on "Overview" and read that too
CF Veteran
Joined: Apr 2011
Posts: 4,825
Likes: 2
From: Indianapolis
Year: '99 and '91
Model: Cherokee
I've only seen k&n filters at autozone... never seen Mobil 1 there. I can go to Napa or others they're just a lil outta the way.
I have to say this thread has made me think twice.
I have to say this thread has made me think twice.
Thanks for the suggestions everyone! i really appreciate all of the links and discussion.
I took my $50 walmart gift card and went down and bought 7 quarts of Pennzoil platinum 10w-30 for $40. If there's anything seriously wrong with tis, let me know. I'm not doing anything till saturday. Tomorrow I'm going to go pick up a filter from Oreillys or autozone.
I took my $50 walmart gift card and went down and bought 7 quarts of Pennzoil platinum 10w-30 for $40. If there's anything seriously wrong with tis, let me know. I'm not doing anything till saturday. Tomorrow I'm going to go pick up a filter from Oreillys or autozone.
Herp Derp Jerp

Joined: Nov 2011
Posts: 18,251
Likes: 17
From: Parham, ON
Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
I have my own preference based on my own research for oil, but based on what everybody else's personal preference the 4.0L - that's in good condition in the first place - seems to do just fine as long as you don't use complete garbage and change it regularly. Leaving crap in for a long time won't benefit anyone. Likewise if the engine is problematic you may need to look into some of the little recipes some people have. Hell, I read someone joking that the 4.0L could probably run on WD-40 in a pinch... sadly it made me think :P
Other than that, +1 on the good filter. That Mini Mopar link someone posted with the reviews and cross-sections is an excellent resource.
Other than that, +1 on the good filter. That Mini Mopar link someone posted with the reviews and cross-sections is an excellent resource.
CF Veteran
Joined: Oct 2011
Posts: 4,440
Likes: 3
From: Seal Beach, CA
Year: 1996
Model: Cherokee
Engine: 4.0 HO Straight Six
Originally Posted by DieselD
I've only seen k&n filters at autozone... never seen Mobil 1 there. I can go to Napa or others they're just a lil outta the way.
I have to say this thread has made me think twice.
I have to say this thread has made me think twice.
I run Mobil 1, which I got at my local autozone. And I'm happy with it. Wix and Napa Gold are also highly recommended.
I'd stick with the K&N if I were you. Plus it's nice and convenient with the nut on the end of it
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