I have a chart somewhere that shows the mixing rates of different octanes......naturally,I can't find it right now.......
I never ran pure toluene and wouldn't recommend it,I used it to increase the octane of pump gas and if my memory is correct, one gallon to 5 gallons of 93 octane pump gas would give an octane rating of around 96.5.........
BTW: toluene is what the
oil refineries use to adjust the octane of a batch of gas when it is made/tested.......
David