I am sitting in an airport hotel waiting to fly to Costa Rica in the am and it is POURING RAIN in Toronto.        Hopefully we get the snow that is predicted for S Ontario and my sled season will begin when I get home    Fingers crossed.   🤞 

Sea Foam has always worked for me.

Anything but meth unless you have a 4 stroke. Getting hard to find iso based stuff. 

We have been adding IPA to fuel for sleds for years..makes a difference for sure. I use it regularly throughout the season. 

I add isopropyl antifreeze to every tank of gas when I return home. Allow water to pass thru engine without harm