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General Forums => The Mess Hall => Topic started by: jfrabat on January 29, 2008, 02:05:47 PM

Title: What is the best differential oil?
Post by: jfrabat on January 29, 2008, 02:05:47 PM
I am going to be changing the diff covers (just got some ARB ones, with the dipstick; nice to be able to check for water without having to open the diff!), and was wondering what oit you guys would recommend to use.  I was thinking about Royal Purple, but I dont know if there is something better out there...
Title: Re: What is the best differential oil?
Post by: Mozman68 on January 29, 2008, 02:23:27 PM
I always here Royal Purple is the best...but I think I just use Mobil??  formulated for limited slip so I don't have to put the adder in as well.
Title: Re: What is the best differential oil?
Post by: Jeffy on January 29, 2008, 02:37:00 PM
If you wheel a lot in mud or water, then grab whatever you can since you'll be changing it often.  Otherwise, you'll be just wasting money.  Otherwise, I'd go with a good synthetic that you can get just about anyplace.   Something like Mobil1.  Some use Redline, Amsol as well as Royal Purple but I've never bothered.
Title: Re: What is the best differential oil?
Post by: oldjeep on January 29, 2008, 03:41:06 PM
$5 a gallon Farm Oyl from fleet farm works as well as anything.
Title: Re: What is the best differential oil?
Post by: jfrabat on January 29, 2008, 06:32:28 PM
I think I will follow your advise here and just put some regular cheapo oil in there and change it often...
Title: Re: What is the best differential oil?
Post by: Jesse-James on January 29, 2008, 06:54:11 PM
I use Mystik, it's cheap and it get's changed about as often as the engine oil.
Title: Re: What is the best differential oil?
Post by: garydubf on January 30, 2008, 11:03:59 AM
I think I will follow your advise here and just put some regular cheapo oil in there and change it often...
Good Idea!!   I filled both pumkins with Amsoil last summer at $150.00.  3 weeks later after a moderate run with one deep hole I was water contaminated.  Went to Napa got some Napa brand (read Valvoline) for $25 and inspect after every run usually end up changing every third run.  Synthetic Amsoil in the crankcase and tranny but not in the diffs.