I had fuel in a mower 8 months with SeaFoam. I added a little fresh gas and some start spray and got the riding mower running.
Yes, I store emergency gas, using Seamfoam's guidelines (1oz. per gal. of gas), for up to 2 years with absolutely no issues. When I get to the 2 year mark, I use the Seafoamed gas in my cars & tractor & it helps to keep the fuel system clean & working properly. To me, it'a win/win! I hope this helps you.
answered 2 months, 3 weeks ago