[AgAngler2370]

so I ran out of yamalube 10w40 and can’t find any marine 10w40 locally without driving 45 minutes one way. Just curios if 10w40 atv/motorcycle would be the same since the local auto parts had in stock. The atv oil is not FC-W but is that really a performance rating or more a testing agency cert.

 

[Marsh Pirate]

I use Rotella T6. I have used it for about 10 years without issue. Bobs the oil guy is a good place to research oils.

 

[BassFlats]

I hear those Yamaha's make oil, so I wouldn't sweat it if you are a little low. Just busting balls

 

[permitchaser]

Ain't 10w40, just 10w40 what makes Yamaha oil so special
i use just good auto oil on my 4 stroke