I've got around 3000 miles on my HT. I broke it in with the Wal-Mart house brand (think it's called Tech 1) I use a 1 gallon gas can. 1 bottle to 1 gal. is 16:1 After 1 can i started mixing 1/2 bottle to 1 gal.= 32:1 Works great, very little to no smoke, engine runs cool with good power, and it's dirt cheap. I know there are very good (and very expensive) oils out there, but is that expense justified on a cheapo China girl? I'll stick with my choice and see how it ends long-term.