Any major brand of two cycle RC fuel you will find in the states will be fine. The morgan/coolpower is fine. The HobbyTown fuel is relabeled Wildcat, which is also fine. The 10%-15% nitro range will suit that engine well. Don't need a special oil (fuel) for break-in with most glow engines. My only real suggestion is not to mix oil types over time, i.e. if you are using all castor, don't switch to all synthetic after a few gallons, etc. Just be sure to follow any other instructions OS provided for break-in such as prop size and initial mixture settings.