What Differential Fluid Are You Using?

zebraranger

Member
Joined
Jan 23, 2022
Messages
29
Location
Florida
93 YJ 4.0 5 speed manual with Dana 30 & 35. After getting this jeep 3 months ago, I've been going through it, changing fluids and fixing things that needed attention. Next and last thing is the differential oil, I was just curious what you all are using, there's a lot of different brands out there.
 

redbullet

YJ Enthusiast
Joined
May 11, 2021
Messages
102
Location
San Jose, CA
For my limited slip salads…

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machoheadgames

Certified YJ Researcher
Supporting Member
Joined
May 19, 2020
Messages
1,312
Location
Dallas, TX
I always use 85W-140 conventional from Currie. It's thick, keeps the diff quiet, conventional is known to extract heat from gears better, and conventional leaks far less from axle than synthetic. So I stick with it. I also choose them because I run TrueTracs which are not supposed to have limited slip additive. They were the only gear oil I know of to not have the additive.
 
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Flyer58

YJ Enthusiast
Joined
Apr 12, 2020
Messages
627
Location
Magnolia, Texas
I went with the cheap stuff from Advance Auto - Carquest gear oil. It is actually highly rated and I change my fluids often. I only drive it a few times a month on flat roads so very little stress or strain.
 
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