If you're storing the motor, you can use something like Sta-Bil to keep the fuel from going sour, but if you're trying to fix a balky carburetor it is far better and easier in the long run to disassemble and clean the carb.<br />- Scott
mid grade gas and TWC-3 is all you need to run it, with maybe the yearly de-carbing if you troll frequently.<br /><br />fuel additive will keep the gas from going bad if your storing it for a couple months or more
