Sure, I used about 10 gallons of gasoline all total at 2.50$/gal roughly, plus a 8$ container of oil for each 5 gallons. That's about 41$ for 10 gallons of mixed gasoline. About 150 flights total on two engines and three airplanes, at about an avergae of about 18 minutes per flight or about 45 hours of operation.

Equivalent glow fuel for me was 20%nitro at about 22$ per gallon. 45 operational hours on glow would require about 14 gallons of fuel. That's 308$ for fuel plus tax of 7% or just under 330$. The savings is considerable over about half a season of flying. I essentially stopped flying a month ago when I dorked my Temptress and just got her flying agin last Saturday.

We have had some hic-ups here and there with the gas engine but that's normal part of the learning curve in my opinion. We had to learn how to care for the beastie and feed it and treat it right.

Therefore, to summarize, if one flies about 20 gallons of gasoline in a season which is very realistic for pattern, expect to save around 500$ or more over glow standard fuel (less than 20% nitro). If one runs a YS170 with its 30% thirsty habit, the savings are closer to 800$ per year. (45 operational hours with a YS will consume about 30 gallons of 30% at 30$ per gallon, MINIMUM) I exclude any maintenance costs

As we have said before, this approach is great for the guys who need to fly a lot or just love to fly a lot. No, it doesn't make the power that YS170 does but it really doesn't matter in the lower classes up to Advanced.