Quote:
Originally Posted by MorTech
"Synthetic" oil just means the hydrocarbon bonds are saturated. Use any small engine 30 oil like YamaLube, Kohler, Honda, B&S. Don't use automotive ILSAC oil because it is inadequate for air cooled and high stress golf cart engines. ILSAC oil is barely adequate for automobile engines  Yamaha recommends 1200 mile oil changes. |
Thank you, I wondered why yamaha does not recommend synthetic oil. What about Super Tech Full Synthetic SAE 10W-30 4-Stroke ATV Motor Oil which is what I used when I changed the oil? It is a little expensive but only 1qt is required.
PS
I sent the old oil for a UOA (Used Oil Analysis) and will post the results here.