fuel system cleaner- VP fix it fuel
https://vpracingfuels.com/product/fix-it-fuel/?c=232
I started buying VP fuel for my small engines (Mower, snowblower, power washer).
No ethanol. I have left it in my snowblower for 9 months and never had a problem with it going bad. its expensive but 5 gallons last me a year.
https://vpracingfuels.com/product/4-...ne-fuel/?c=232