well i would say its a good way to rust it up ....
seriously I have done RC almost as long as BP ,,20+years.
when done flying at the end of the day you will see any good RC pilot fill his engine with after run oil and turn it a few times . if this isnt done over time the bearings will pit and damage the engine . In fact all leading RC engine manufactures , OS, SATO, Fox to name a few state this in there instructions .
10% aircraft fuel has 10% nitro, and usually 15 to 20% castor or synthetics depending on the maker of the fuel that leaves 65% of what in your barrel .
sorry wouldn