Thanks for all the info guys. I bought a case of Powermaster 15% Nitro/18% oil at the Perry show. I called my local propane service and they are going to sell me some methanol. I plan on cutting the Powermaster fuel 50/50 with the methanol and that should give me 7.5% nitro and 9% oil. That should work. The ST3000 is already broken in so I should have no problem with the lower oil content.
Thanks
Loopman