I use Sea Foam in both my motorcycles, WH, 2 cycle stuff, pressure washer, and my Ramrod 915. True believer in the stuff. The quality of gas in my area sucks and the ethanol isn't helping at all. The main use is as a stabilizer for the fuel in the off season. It will keep fuel fresh for up to 2 years. During the summer I will run 1oz per gal. every couple months or so to clean out the fuel system. Works great on FI and carbs. I get it by the gallon and it lasts for years.