Just got my New Tower hobbies in the mail the ARF went up to $279.99. Glad I got mine when I did. heres some more detailed pics of the engine. Any one know what gas mix is best 20:1, 32:1, AMS oil. My local chainsaw dealer suggest his Stihl 50:1. My flying club say to make sure I get ash-less oil? I guess it makes for less soot.