what about jet-a in a 2 stroke? '69 yamaha. jet-a is a cleaner diesel but still diesel. it won't add $'s to my budget 'cause i would get it from the fuel filter sump,fuel trucks must have sumps tested daily, 1 gal. is drawn out . might give it a try, not permanently. i heard old sprint car guys used avgas, with a few drops of oil, in their modified engines. must have given them something. i'm not racing but a fun test of a theory. oh, michelle rahal talked about using avgas on the nascar radio. i used to help with a hobby stocker on dirt back in the day, drivers were always searching for octane. i have to tinker ya know.