I have an '03 225 hpdi that I have personally logged over 300 hours on. I usually fish all year, but this year I put the boat away during the first week of November. I added some Seafoam and stabil, ran it a minute to get it circulated, and tucked her in for the winter. I pulled it to the lake last week for a tourney and she started first crank and ran like a champ without issue. I love that motor