What are we all running in our differentials ?

[Sam_Julier]

240 Diffs: Castrol Axle 80W90 GL-5
Highlander TC: Castrol Syntex 75W90 GL-5
Highlander Diff: Castrol Axle 80W90 GL-5

All $2/qt from AZ clearance. Which makes me happy.

Sam

 

[MRtv]

97 Ford F150. My rear differential has Valvoline 75w140 synthetic with added LS fluid by CRC. My front differential has Chevron Delo 75w90 synthetic. Transfer case is running with Castrol Transmax Dex/Merc transmission fluid. Will be keeping it that way on the next drain and fill. Oh and thank the heavens above my front differential has separate drain and fill plugs.

 

[Dino01]

In the Mercedes it's Liqui Moly 85w90 235.0 oil
In the Tundra M1 75w90
In the RX I've got the liquid gold OEM Toyota 75w85 fluid from the can. That came out looking as new when I just changed it a few weeks ago at 50k