Just bought an ASK 14 motorglider and reading the flight manual
etc. The fuel required is noted as octane 80 normal gasoline mixed
with two stroke oil at a ratio of 20/1.

The chap that owned it before me ran it on normal unleaded with
shell vsx at a ration of 30/1.

I’m sure this is ok but I wanted to see what anyone else currently
uses?

Thanks

G