I have been running my us and quadras on 15/17 glow and on hi 93 gass. I have been doing it with 2:1. 2 pars gas and 1 part glow.

I just did some testing with 2.5:1 but the engine was hard to get started. Try the 15/17 2:1 and see how it will do.. I have seen on this list that ppl have been running 10/10 2:1 but I can get the fuel were i am at..

the 15/17 has alot of oil in it but it did not seem to be a prob. with the 10/17 the enging did not have the power as the 15/17. and the engine was not geting hot or detanation. (i cant spell sorry) So from what i have been geting out of my us and quadras was that the 15/17 2:1 what about the best all around.. but that is just me.. allot of ppl has been haveing good lick with otheres. The only way you are going to find the mix that you like is to just play...

One thing I did find was that you have to run a so F glow plug.. all the othere plugs just do not get it done.

Paul