03-24-2016, 02:49 PM
I have a 150 Yamaha, 2 stroke, oil injected, main motor. I used to run Yamalube, but after talking to several people, most notably, several of our Yamaha-certified motor mechanics, I changed to using the Wal-mart TC-W3, stroke oil about 5 years ago. I've never had any issue and the Walmart Supertech oil has the same "marine" ratings as the Yamalube, Quicksilver, etc. I'm typically very fussy and OCD about using what is recommended, but I've saved a lot of dough and feel 100% confident since the ratings on the jug of oil are what mattered most to me. If they have ratings that meet or exceed the O.E.M. ratings, you are good to go. Also switched to this on my Polaris snowmobile, where I only ran Polaris oil, and haven't had one issue
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