Marine Tune-UpWhen watersport engines are running rough, it&&';;s time for STA-BILA(R) Marine Tune-Up. The easy-to-use additive pours directly into the fuel tank to address issues caused by ethanol-blended fuels or plain old, neglected fuel systems. One treatment is enough to restore lost engine performance in any gasoline-powered watercraft like jet skis, speed boats, and PWCs. Try it next time the engine seems to be running a bit rough, unlike you remember it.Formulated ForAny gasoline-powered watercraft like jet skis, speed boats, and PWCs.Top Benefits: Easily cleans carbs and injectors Treats 20 gallons of fuel Quickly resolves rough-running engines Dissolves gum and varnish build-up Perfect for small boats and personal watercraft (PWCs) Compatible with all gasoline marine engines Great to use as a "tune-up" throughout boating season Directions for Use: Use 1oz of STA-BILA(R) Marine Tune-Up for every 2.5 gallons of fuel. Once users measure out the correct ratio, pour STA-BILA(R) Marine Tune-Up directly into the gas tank of the marine vessel After pouring in the additive, top off the gas tank with fresh fuel Finally, start the engine and let it run for 15 minutes uninterrupted Specifications:Size: 8 oz