They don't have Odonells, I don't know where I got that from. They have Byrons Race Gen 2. Well the traxxas fuel is like $35 a gallon and the bryons race gen 2 is about $27.00. Almost $9 cheaper. I have been using traxxas top fuel because that is what they said to run for best performance and longest engine life in the book. Basically they said we developed the engines and after testing came up with the best fuel for longest tune and engine life. I know they want you to keep spending money with them on their fuel. Is Byrons Race Gen 2 good stuff. Will I harm my engines by changing from top fuel to race gen 2 after running over a gallon of top fuel through my nitros.