I feel like a rebel. I just put in Amzoil motorcycle full synthetic. yes I change it every 50 hrs. I also use the orange stuff for coolent have forever. I was using aeroshell like everybody else. I noticed something this time. generally I put in like 2.5 quarts for fill. If the fill isn't just right it will come out the vent. well with the amzoil I by mistake overfilled the tank with 3 quarts. I thought oh bother, lets see if it comes out the vent, hasn't done that this time. anyway I also just go to the station and put in 10% alki as well. it's had a steady diet of this stuff for years and many hours. no ill effect only thing I notice is mo money for fuel. haha
one more thing. I'm sure I'll catch hell for this. I use a wix 51056. can't get myself to spend the money on a rotax filter. done that for many many years and thousands of hours. I don't burp the engine before start, just turn it over about 18 compression strokes. never a problem from that also. oh one more thing. when I change the oil I never crack the oil lines. I remove the filter, fill the new one and install. suck out the old oil in the tank and clean (helps me to see if there is anything in the tank, aka pieces and parts.
I than put things together and crank the engine with mags off until there is pressure than hit the mags and start. oil change is a non event. I than put a piece of tape on my stick somewhere with date and hours for next oil change. put it in the book and go fly.