RE: byron fuel??
20% would be absolutely fine with the 26. If you want the most power you can get, i recommend 30%... not that much more cash to get it and its a total diff between 20-30. I ran 20% in the traxxas 2.5 rustler, got 3 gals in it before my hard running put that engine to bed. Then when i got the replacement 2.5 and used 30% and its a tottally different truck. i know new engines run better but im on my 2nd gallon in it and still runs alot better
Chris