Diff Lube

Guest · 2010-09-29T06:19:08-07:00

Im about to change the lube in my Rubi diffs. Jeep recommends 4 Quarts - Synthetic SAE 75W-140 GL5. OK this much is known but what about brands. This has been a battle like Chevy vs Ford for years, and then someone comes out with a new product that is new and improved. I read about Pro Purple Max, Redline, and several other brands. Any recommendations on what synthetic lube works best?

Guest former user
Guest former user
#129 Sep 2010, 6:19 AM
Im about to change the lube in my Rubi diffs. Jeep recommends 4 Quarts - Synthetic SAE 75W-140 GL5. OK this much is known but what about brands. This has been a battle like Chevy vs Ford for years, and then someone comes out with a new product that is new and improved. I read about Pro Purple Max, Redline, and several other brands. Any recommendations on what synthetic lube works best?
BKGM Jeepers President Joined: June 2003
BKGM Jeepers President Joined: June 2003
#229 Sep 2010, 7:58 AM
I run Royal Purple.

Amsoil and Redline are also good.

Kathleen and Brad
RobD Subscriber
RobD Subscriber
#329 Sep 2010, 10:00 AM
I use Napa 85-90 gear oil, but I also change my diff fluid 2 to 3 times a year.

__________________ 'If we ever forget that we're one nation under God, then we will be a nation gone under."- Ronald Reagan
Justin Subscriber
Justin Subscriber
#430 Sep 2010, 9:05 PM
"RobD" wrote: I use Napa 85-90 gear oil, but I also change my diff fluid 2 to 3 times a year.

x2