For those of us that have 1000 razor XP's or vehicles that use 93 octane try using octane booster instead of paying the 1 dollar <br/>a gallon more over regular.Have tried it in a Toyota Avalon and various 4 wheelers and a Razor,seems to bring the mileage and performance from regular up to premium levels,we use the Lucas brand,found it as cheap as $8 abottle and 1 bottle...