Yamaha HO Cruiser Jet Ski 4stroke - Oil Recommendation?

[bradesp]

I bought two new 4 stroke Yamaha HO Cruisers this spring (they each have about 35 hours at this point).

Any thoughts, recommendations for oil? Synthetics, dino, oem factory?

Thanks!

bradesp

 

[Brett Miller]

Amsoil 10W-40 or 15W-40 would be my choice.

 

[Jeepster_nut]

Yamalube 4M 10w-30. I have an 08 FX HO Cruiser and it runs well on it, plus its factory recommended.