I ran my 25cc homelite on the gas/glow mix. I did seem somewhat better on fuel...but NOT twice as much. Like you say its just physics and basic math. You are comparing strait gas to strait glow fuel......but your mix has 331/3 percent glow fuel in it. So 2 times as much consuption is with the wrong math figures. Correct? In 3 gallons of my mix, I will have $15 TOPS for alky, plus .75 for oil= $15.75or about $5.25per gal. Your milage may vary! Capt,n