go too your Yamaha dealer they sell Yama-lube in bulk from a drum cost me 28.00 per gallon , but don't forget to take your empty jugs.

If your location was in your profile you might be more likely to get help.

I've been using Lucas you might check it out

yes i run sta bill in every tank of gas so I will continue to do that and also run some seafoam in her once a year probably. i have been reading that ring free is awesome too...looks like i'll be switching to quick silver premium plus since walmart has it for $20. thank you guys for the input

I've got a gallon of it I can't use... Interested?
From Fun N Sun, in white jug.

After extensive research, I found many marine mechanics in the US, agree that Pennzoil Premium Plus is a what they prefer to use in their own outboards. I've been using it for several years, and really like it. Less than $20. at most academys and walmarts.

I like sticking with manufacture recommendations.

TC-W3 oil is the same regardless of the brand. There is no need in paying extra to get that logo. That pennsoil premium plus @ wal-mart has synthetic additives and is good oil for $17+.