Before you add Stabil to your fuel, take and remove your fuel filter and replace it with a new one. Then run Stabil thur your fuel line. After running Stabil, I pull the plug and put a light spray of fogging spray in each cylinder to lube up the cylinder walls so they dont rust or freeze up. I put the bio-antifreeze in the live wells and run the bio-antifreeze thur the live wells lines. (that is made for RVand larger boats the pink stuff ) Than in spring just run fresh water thur the line to clean them out. Done this for the last 3 years and have no issuse. Bob