Use for too long, and there will be large pile of molten metal where the engine used to be. I imagine on the basis that it is used in cars for short bursts, it wouldn't really suit an aircraft engine for a few reasons.
Head temp as mentioned
aircraft piston engines are low revving, so banging that stuff in will exceed the red line in a jiffy.
At full power, the propellor tips are not a million miles away from the speed of sound anyway, adding that might take them over, and aerodynmically, that is a bad thing.
Hope my humble opinion helps, now those with a more presice knowledge will blow me out of the water no doubt!
Crash helmet on and waiting