About the only legit way to improve milage in gas is to have a lubricaity additive and an octane boost. I have tested both and they do improve by a few miles per gallon but it is an ecomonic wash. A stabilizer is actually a trm used for fuel oxidation inhibitors. They do work - but do not impact milage unless you were to drive the car, record your mileage, sit for 3 months and drive again. The fuel with the stabilizer will provide a better mile/gl than the one without. The stabilizer will not improve the fuel, just slow down the oxidation process.
Trust me, if there was anything legit out there we would have invented it, stole it, copied it or brokered it!
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Michael D. Holloway
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