Yanmar 4JH2 Gearbox Oil

[westernman]

What oil should I use?

I am not down at the boat and don't have the manual to hand and want to be prepared to pamper my engine next weekend.

 

[Norman_E]

Most Kanzaki (Yanmar) gearboxes use ATF rather than gear oil. To be certain you need the gearbox type number.