I went flying just after posting the pictures of the frozen fuel. By the time I got to the field, (10 minutes) the fuel was still very cool. I gave it a shake, looked good so I fuelled up and flew as normal. This fuel was as cold as you might get with winter flying. The oil went back into solution at a fairly low temp. The ambient would have to get REALLY cold for any separation to take place. Much like my experience with the 60% nitro mix.

The engine was my old .074 that still gives good bang for the buck. Compression had to be set a full half turn in from a running setting. High ether prime was used and it took three prime bursts before she lit off on the fourth. Not too bad,, considering the cold fuel.

Also, once the cylinder was hot, the engine would light off with just the prime provided by blocking the muffler while spinning the engine with the starter. A real, no muss start, once the engine was up to temperature. Kelly's preheat ideas have merit. A hot spot contra-piston might work or even an unenergized glow plug installed in a disc. Yes, this was tried last year but NOT with a turbo plug.

So it ain't over yet. But I'm real happy that I can run without ether. I just have to fly all this stuff for a season to work out any unforeseen bugs. So far, only the .074 has flown with this unusual mix. Next step is to turn down the fins and see what that might do.