Perusing the handbook for my NAS 2003 Plus 8 reveals that I should use some form of Hypoy 90 in the rear axle as (and feel free to smirk) unbeknown to me it apparently has a limited slip diff........does anyone know if GL-5 80W-90 gear oil is OK to use? The blurb on the container reads ".....where API GL-5 or MT-1 lubricants are specified. Can be used to make-up or refill Limited Slip/Positive Traction rear axles....."
Out here in the Colonies using that in both the diff (2.1 US Pints) and the gearbox (3.36 US Pints) would coincidentally and happily save having to buy 4 pints each of two differing flavors, but obviously if GL-5 is not up to snuff for the diff then so be it.
Many thanks for any insight
