very good explanation of how the xylene mix works, but 2.5 gallons of xylene to the tank only gets the car an additional 3.5 octane?
your math seems right, but for some reason the car just runs better? maybe my gas tank is smaller and holds less fuel
just kiddin, so what are your views of a car able to run 121 in the 1/4 with 91 octane and a .035 nitrous jet running denatured alky and 24° timing up to 83 MPH?
seems like more than 100 octane to get those numbers right?
car and driver= 3640