I was wondering if mixing xylene with leaded fuel would cause any problems. I have some xylene and pump gas mix still left in my tank, but i was going to fill up with race fuel before i go to the track tomorrow.
Sometimes I think that true gas is the smaller of the mixture that is going into my motor, between xylene, a splash of 100, MM oil, a dash of 116 and a butt load alky with wd 40.
Leaded race gas is something like 10-40% toluene and xylenes anyway, so adding more won't hurt. Also, toluene and xylenes don't hurt O2 sensors (it's the lead that does that).