[a427sc]

Maybe Doug is referring to Oxygenated fuels, used to lower emmissons in cold weather. Not available in all parts of the country, generally in areas like the Northeast where we have to deal with the bad air blown on us from the mid-west. Vehicles will see a distinct difference in performance and mileage between "winter" and "summer" gas.

My guess is 15 gallon tank, 20% = 3 gallons @ $4.50, vs 3 at 1.95, and doing it maybe once or twice till the fuel changes back. Not enough of an expense to bother with. You probably spend more on wax. The other plus not mentioned is the great smell race gas has. Just another sensory spike when you open the door.

Don