abufletcher,

I believe so, but I cannot advise about the exact fuel that the manufacturer specifies for the UMS 7-70 engine.
No manual seems to be available on-line.

Check this additional info on the engine and contacts for further questions:

http://www.umsindia.com/product_deta...d_201072052134

http://www.seidel-triebwerke.de/englisch/englisch.html

http://search.rcuniverse.com/search....200+&i2=seidel