what gear oil for sterling 10.25

[sweet66monza]

I need to flush my rear diff. There are about 20 different gear oils out there. What weight is recommended? Thanks!

 

[reklund]

Mine's full of plain old valvoline 80w-90 with the ford LSD Additive.

 

[tbrumm]

Royal Purple 85w140 for me.

 

[justinray]

Royal Purple 85W140 here too.

 

[idiabuse]

I used 75W90 AMSOIL with no additives.


Javier

 

[heff]

I also have amsoil 75w90. I needed a little bit of the additive tho.

 

[riotwarrior]

If non posi or is a posi makes a difference


85-140 SYNTHETIC for a POSI rear diff and more than likely highly recommended, that you use a synthetic anyway for it's better quality.

JM2CW

Al

 

[kc0stp]

Amsoil 80w90 in both the 10.25 rear and dana 50ttb front on mine

 

[chris142]

Valvoline 80w90. I have a detroit locker. detroit locker does not recomemd synthetic oil in there lockers