104 octane booster is not very potent, go with torco or klotz. Those are the 2 leading brands. You can use 1oz of klotz per 1 gallon of 93 octane and move it up to 95.5 octane so it is really cheap. A gallon shipped is $56 so that is only 43.7 cents per gallon which is really cheap. Or you can be stupid and use 2 gallons of paint thinner aka toluene to 14 gallons of gas and that equals out to $1.50 a gallon which is expensive, barely raises octane and damages your emmission system. You tell me which is the smart way to go, lol.