I switched to a new fuel today...

I've been using Glowplugboy with 17% castor and no synthetic. Runs fine, no problems as far as I can tell. But since I now have a couple of engines that turn faster than my reedies I figured I'd try something with 20% oil. That would be Sig Champion 25% nitro and 20% oil, half castor/half Klotz(whatever that is). The first thing I thought when I took the cap off is, this smells more like the old Cox Red can. I think it had Klotz too, so maybe that explains the resemblance.

I tried it first in my TD which was on a plane with my new bladder tank. I had to screw with it for a while getting it cranked, and it ran fast and steady as usual. By the time I was through me and the plane were covered with the slickest coating of oil I've ever seen. Usually I clean myself up with a rag soaked in alcohol, but I had to go in the house and wash it off. I was covered with it, even my face where the engine had spit it all over me. I couldn't see out of my glasses.

I went back out to try and get one of my Black Widows running right so I would have at least one flyable plane. Put it back together on the Li'l Satan and cranked it up and it ran great on the Sig. But after 3 test runs it had so much oil on it I could hardly hold it. I mean dripping. Again I had to come inside and wash off. I had it all over my glasses too. That's got to be good for the engines, but man, what a mess. Don't get me wrong, I am not complaining, just surprised. I'm curious if anyone has thought the same thing about Sig. Is it the synthetic oil causing this. Cox fuel never make such a mess.
Just curious