I'm making the switch from amsoil dominator to maxima 927 castor with my next 5 gallons of 112. Just got done talking with maxima and they said separation due to low specific gravity won't be a major issue until 32 degrees or below and to add 3% of 93 pump gas to my mix and it will assure no separation. I can't stand my exhaust smelling like straight race fuel with no real hint of two stroke oil!