can i run 4 cycle fuel in my alpha 60 trainer 2 clcle.i messed up the other day and bought 4 cyle instead of the 2 cycle fuel.later asked the man at the hobby shop and said it would run just fine no need to bring it back for trade in.so i finally got to use the 4 cycle and all my eng does when i throttle half way or more is spit and sputter.had 5 dead stick landings today.that was exiting and all and i got pretty good at it but i did rip my landing gear out once.easy fix.im new maybe 2 gals of fuel put threw alpha 60 so far and half a gal of that 4 cycle.any comments would be much help.