last year I was running traxxas top fuel (not very good IMO) and it cost me $30 a gallon bought 2 gallons(2nd gallon was cause I ran out and my LHS was sold out of everything but traxxas nitro, and wasn't getting a shipment for a week )
2 months ago I bought odonell 20% for $23 and am liking it better. I find less oil is coming out of the exhaust, and when I broke in my jammin X1 very little oil came out during the whole breakin vs when I broke a engine in with the traxxas I stained the cement cause the oil soaked the piece of cardboard I had under it after 1 tank.