I usually add a nitro/methanol mix to gasoline although I have had straight nitro mix with clear gas rather well. I like to have a little castor in my gas as well and if I just add mixed glow fuel to my gas I get all three birds killed with one stone. I eventually will run most of my small gasoline engines on methanol, I just need to get some alcohol safe carb parts.

Mowing the grass is rewarding... Fresh cut grass with a whiff of castor and nitro. Heaven!