@thager the hydraulic boat lifts use environmentally friendly fluid so if there is a leak it’s not an issue. Some people have told me it’s vegetable oil but I am skeptical. I know that many people on warmer climates leave their hydraulic lifts in all year. The @theboardingschool has one for their Prostar that has been in for years as far as I know. I am not sure what brand they have but I should maybe ask Travis next time I am there.