Not all engines are the same, and the fuel additives and performance chemicals you use shouldn’t be, either. STA-BIL® Marine products are specially formulated to treat boats, jetskis & other watersport engines, whether they are on the water or in storage. STA-BIL® marine products have been recommended by over 100 original equipment manufacturers, and have been used and trusted by consumers for over 60 years. Whether for day-to-day use or during long periods of storage, you can rely on STA-BIL®’s powerful performance chemicals to protect your boat from today’s fuels.