Hi all
I am currently giving the 504 some love with a full fluid service.
I am stumped as to what oil goes in the rear differential.
Penrite website is saying Trangear 75w-90 Semi Synthetic.
The old Haynes manual says Castrol Hypoy Light (80 EP).
The original factory glovebox owners manual says Esso Gear Oil GX80.
So....which one is it?
Cheers
I am currently giving the 504 some love with a full fluid service.
I am stumped as to what oil goes in the rear differential.
Penrite website is saying Trangear 75w-90 Semi Synthetic.
The old Haynes manual says Castrol Hypoy Light (80 EP).
The original factory glovebox owners manual says Esso Gear Oil GX80.
So....which one is it?
Cheers