I had been running TruFeul 50:1 in Stihl machines until three years ago. IIRC I ran over a gallon thru the chainsaw while cutting up some large trees. I don't recall any problems but since then have switched to 89 Octane E0 with Husqvarna JASO FD rated oil. There are definitly no problems to report with this brew.The issue with Trufuel seems to be the quality control. I stopped recommending it once I saw a few customers of mine having issues with it. Most of their machines would still start fine, just lack power or not rev out.
I live in New England and E0 fuel is pretty much non-existent. I tell people to run the VP Racing pre-mix or Echo Red Armor canned fuel if they don't use very much for 2-strokes, and that seems to work really well. For my own stuff I just run E10 87 fuel in everything but run the equipment dry before storage.
Sometimes if the carb jets are only slightly clogged you can get lucky and running seafoam or MMO in the fuel can clean things up. If the carburetor is gummed up then nothing in the fuel will help.My old crapsman mower was running not so great the last time it ran. Added about a thimble of MMO and after a few minutes it cleared up. MMO always has to be way better than ethanol jelly in the carb.
I generally just use Echo, Husqvarna, or Opti-2 oil with E10 fuel and run them dry when I'm done. I haven't personally experienced issues the few times I've used TruFuel, but I have seen it cause issues in customer machines. My guess is that it just isn't as good at withstanding sitting around like they claim, and the customers machines I had issues with the fuel was quite old.I had been running TruFeul 50:1 in Stihl machines until three years ago. IIRC I ran over a gallon thru the chainsaw while cutting up some large trees. I don't recall any problems but since then have switched to 89 Octane E0 with Husqvarna JASO FD rated oil. There are definitly no problems to report with this brew.