We are a total Yamaha family...pontoon has 4-stroke, bass boat V-Max, Jet ski is Yamaha VX cruiser.

I stopped at Yamaha dealer looking for oil for jet ski. It is a NEW 4-stroke. The owners manual recommended a standard grade car motor oil, but I wanted to put OEM oil in it. The dealer gave me a Yamaha 4-stroke oil that was labeled FC-W 10-30. It says 4 stoke on the bottle but has a pic of a 4-stoke OB. I went to the Yamaha web site and they showed a "W-10-30" with pic of PWC on the bottle. My question being, is FC-W 10-30 same as W-10W 30 the same?

Thanks for your in sight.