The carb it saved was the float bowl type like the Tecumseh.
It was on a Generac generator. Granted it was only six months but it was more than worth the 5 bucks for the additive. I drained the tank and float bowl completely and put a heavy fuel mix of the MIC and regular gas.
They also make a storage additive called “Ethanol Shield”.
Maybe I should just quit being a cheap Yankee and go out and buy a Honda 9/28 track drive snow blower.
I have a small(20”) Honda HS 550 snow blower. It will run fuel that will not run in the other machines. Same with my Honda generator. I never have problems with that.
Any machines that have Briggs & Stratton engines or Tecumseh engines are problematic.
Honda and Stihl products ALWAYS start and run better than any other small engine equipment.