I have done this since buying the boat in 3 years ago and the boats a 2006. however a friend does not and swears that just loading up on the fuel stabilizer works fine. I know a local mechanic who winterizes and he does not do it to the boats he takes care of. Is it really that beneficial to run this solution? for those of you unfamilar Merc recommends a solution of gas, 2 stroke mix, and stabilizer run through the motor for a set period of time. Basically a fogging solution.