Pickupsticks,
Lets see if I can pass on some more info to you. I have two ST3000 engines. I run Cool Power 5% in them with no problems. I have also run homebrew fuel with 5% nitro and 15% oil. The oil that I used in it was Klotz Techniplate for alochol. Ieven ran it with no nitro till it got winter which made it very cold natured. I quit running homebrew because the guy I was getting it from quit running his top fuel dragster.
Cubfan