1 Gearbox & Final Drive Lube Fri Aug 06, 2010 2:59 am
Rickmeister
Life time member
Just completing a bit of a service on the old girl. I changed the gearbox oil and also the final drive oil. For the gearbox (approx. 850mL) I used a Nulon product, SAE 80-90, with the other numbers the same as per the Haynes manual. I didn't have enough left for the final drive, so I rummaged around the shed and found a Shell product, called "Spirax", also SAE 80-90, and the other numbers matching which I duly put into the final drive casing. My problem is that the viscosity is vastly different between the two oils. The Spirax is much "heavier", nearly honey consistency (a bit of an exaggeration!) while the other is more like normal engine oil, slightly heavier. Am I worrying un-necessarily? Will the final drive casing explode? I haven't ridden it yet, pending comments on this wonderful forum.
Thanx, Rick G.
Thanx, Rick G.