can castrol GTX ultraclean 10w-40 a3/b4 be used as final drive oil?

Hey everybody, I'm planning to change my gear oil.
please help me figure out if this oil fits our swing
thanks!
castrol GTX ultraclean 10w-40 a3/b4
these are the specs:
SPECIFICATIONS
SAE 10W-40
ACEA A3/B3, A3/B4
API SL/CF
MB-Approval 229.1
VW 501 01/ 505 00
Meets Fiat 9.55535-D2/G2

Yes. The Honda Factory Service Manual (FSM) says that you use the same oil as you'd put in your engine. So I'd interpret that to mean, if it's a good quality motor oil then, yes, you can use it in the final drive.

Tim

There is no wet clutch on these machines so you can use automotive oil if you like. Does not have to be motorcycle specific oil. Crankcase takes appx 2.5 qts and final drive about a pint or less. So buy 3 quarts and do both jobs at the same time. That is what I do. Good luck.