The STABIL® brand offers a range of products designed to treat all your engines—from everyday chore products to collector cars, snowmobiles and boats—STA-BIL® goes above and beyond to protect like no other. Not all engines are the same, and neither should be the fuel additives you use. Every STA-BIL® product is specially formulated to treat each of your engine applications differently, whether they are on the road, in the water, or in the backyard tool shed. STA-BIL® products have been recommended by over 100 original equipment manufacturers, and have been used and trusted by consumers for over 50 years.