In the end, I would try every kind that you can find at your hobby shop, and see what works best. The important thing is that you can get fuel from your local hobby shop which works for you. My LHS stocks blue thunder and byron's. I went through a gallon of the blue thunder 20%. It wasnt bad, but i started running byron's 25/11, and my buggy hits a whole higher octave. I can also get byron's fuel for $29 a gallon at my LHS which is AWESOME.