Anyone use xylene to boost octane a little bit? If so what percentage mix do u run?

 

ive used it before, but you need quite a bit to boost octane.. i read somwhere (its out there on the www i just cant find it now) that you need to add somthing like 10% to get into the 100´s

the engine ran great and id recomend it to anyone with a cheap and inexhaustible supply of xylene

 

http://www.gnttype.org/techarea/misc/octanebooster.html

https://ls1tech.com/forums/fueling-i...ix-xylene.html

Many more just search "xylene" or "toulene"