Hi,I'm changing my transmission and diff. oil. My handbook specifies SAE 75/90 for the gearbox/transfer box and SAE 90 or SAE 80/90 for the diffs.
I live in Spain and despite trying three motor factors cannot find SAE 90 or SAE 80/90.
The advice I have been given is to use SAE 75/90.
The car is not used for towing, serious off road or other heavy duty work.
Can any one advise please?
And finally, a 'silly' question. What's the easiest way to refill the transmission oils? I have no specialised equipment.