Castrol syntrax

[Wack99]

Looking to do the trucks first diff service, has anyone used or have thoughts on Castrol syntrax 75/90 gear oil. I would use Amsoil, but living in Canada it's not readily available on the shelves.

Jason

 

[jetrinka]

Redline is what I use and recommend.

 

[motorhead426]

Looking to do the trucks first diff service, has anyone used or have thoughts on Castrol syntrax 75/90 gear oil. I would use Amsoil, but living in Canada it's not readily available on the shelves.

Jason

View attachment 94023

If you have limited slip, just make sure that bottle has the additive in it. Otherwise get some LSD addtive from the dealer and add it in.

 

[red]

Looking to do the trucks first diff service, has anyone used or have thoughts on Castrol syntrax 75/90 gear oil. I would use Amsoil, but living in Canada it's not readily available on the shelves.

Jason

View attachment 94023

I'm also in Canada. I ordered Amsoil diff oil from their website last fall. Shipping was free and fast. Order the squeeze bag version. These make it very easy to fill the diffs.