AMSOIL
Thread Starter
Senior Member
Joined: Jun 2012
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From: Rome, GA
Year: 1990
Model: Cherokee
Engine: 4.0
Does anyone know anything about or use AMSOIL products?
I noticed on the TeamCherokee parts site (where they sell alot of OE parts cheaper than you can find them on ebay), they have a whole entire section devoted to AMSOIL.
http://www.teamcherokee.com/AMSOIL/index.html
I noticed on the TeamCherokee parts site (where they sell alot of OE parts cheaper than you can find them on ebay), they have a whole entire section devoted to AMSOIL.
http://www.teamcherokee.com/AMSOIL/index.html
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
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From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
You can't do any better. I ran a fleet of big trucks on their oil along with a supercharged Miata.
W-stev29, I copied this from your post and sent it to everyone in my contacts list.
Common sense dictates that if all "pro-gunners" were as violent as "anti-gunners" say they are, then there would be no "anti-gunners" left.
W-stev29, I copied this from your post and sent it to everyone in my contacts list.
Common sense dictates that if all "pro-gunners" were as violent as "anti-gunners" say they are, then there would be no "anti-gunners" left.
Thread Starter
Senior Member
Joined: Jun 2012
Posts: 595
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From: Rome, GA
Year: 1990
Model: Cherokee
Engine: 4.0
Thanks.......that's good to know. I was looking at replacing my front and rear diff fluids when I found the AMSOIL page. Everything is working fine but since the XJ is new to me, I don't know when or even IF the fluid has been changed.
Ok, here's a stupid question: I know the rear diff needs the SLIP LOCK friction modifier. Would I be correct in thinking that the front needs it as well?
Ok, here's a stupid question: I know the rear diff needs the SLIP LOCK friction modifier. Would I be correct in thinking that the front needs it as well?
Thread Starter
Senior Member
Joined: Jun 2012
Posts: 595
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From: Rome, GA
Year: 1990
Model: Cherokee
Engine: 4.0
WE ALSO RECOMMEND THAT YOU PURCHASE THE AMSOIL SLIP LOCK FOR ALL LIMITED SLIP & LOCKING DIFFERENTIALS. THIS ADDITIVE IS MANDATORY FOR ALL LIMITED SLIP-POSI TRACTION & LOCKING DIFFERENTIALS.
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::CF Moderator::
Joined: Aug 2011
Posts: 43,971
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From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
No chatter, banging or groaning around corners and you're doing fine. But in the interest of not voiding anyone's warranty, or contradicting the manufacturer's instructions....I'll go back to tongue biting, lol.
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,579
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
I'm kinda biting my tongue because I've commonly run Amsoil in eaton posi's without the LS additive, because the combo allows the clutch plates to slip too much. It is entirely possible to "modify the friction" to the point where you essentially have no limited slip left. Add a couple bottles and see what you have left for breakaway torque.
No chatter, banging or groaning around corners and you're doing fine. But in the interest of not voiding anyone's warranty, or contradicting the manufacturer's instructions....I'll go back to tongue biting, lol.
No chatter, banging or groaning around corners and you're doing fine. But in the interest of not voiding anyone's warranty, or contradicting the manufacturer's instructions....I'll go back to tongue biting, lol.
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,579
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
My Napa carries it. There's not a huge profit margin in it and probably not kickbacks and incentives like other products offer parts store. It was originally set up as a dealer network for regular folks to make a few bucks. It was also available if you sign up as a fleet owner. That's what I did when I had my big trucks. We could get our oil analyzed for free and I ran amsoil in my Kenworth for 44,000 miles before I had to do a complete drain due to contamination from a failed injector. Was never aimed at chain stores.
Last edited by cruiser54; Jun 22, 2012 at 08:21 AM.


