Yes methanol and nitro and a special mix of oils 30% nitro, 61% methanol, 9% oil. I bought a used motor, and when it comes in I am going to shim the head to lower compression a bit, go 2 steps colder on the plug, then try a 45% nitro 48% methanol, and 7% oil mix, since it is not my race motor, if it blows the rod out the bottom, not a big deal, but if things work well then I will work it on over to the other engine.