Thread: Raising 91 octane to 94 octane???

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Originally Posted by billlsbird

I read about some race gas that came in a bottle that when mixed with lower octane pump gas would raise the octane of the pump gas. Has anyone heard of this??? And how feasible is it to try to raise the octane level in pump gas? Say from 91 octane to 94 octane? Thanks, Bill

It can be done, but to determine the actual amount of octane you would need a fuel hydrometer to measure it. Many around here use 104 octane booster, seems to work ok. Directions on the bottle are fairly good as to how much to use....