Most importantly to aid in years of ez use and the best oil for your motor Id run 100% synthetic, see if you use petroleum based oil it will produce carbon deposits, a lot of the time folks dont know they should decarb every spring and fall, that takes the carbon out, since Im lazy and busy I run the synthetic, no carbon to be produced, half the smoke of dinosaur oil, and it just makes those 2 strokes run better. Walmart has the pennzoil 100%synthetic tcw3 injection oil, Evinrude makes xd 100 but thats expensive, if I were you Id check on google.com cheap outboard oil I think the site is cheapoutboardoil.com or google it, way cheaper than stores.