Marine Tune-UpWhen watersport engines are running rough, its time for STA-BIL 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 injectorsTreats 20 gallons of fuelQuickly resolves rough-running enginesDissolves gum and varnish build-upPerfect for small boats and personal watercraft (PWCs)Compatible with all gasoline marine enginesGreat to use as a tune-up throughout boating seasonDirections for Use:Use 1oz of STA-BIL Marine Tune-Up for every 2.5 gallons of fuel.Once users measure out the correct ratio, pour STA-BIL Marine Tune-Up directly into the gas tank of the marine vesselAfter pouring in the additive, top off the gas tank with fresh fuelFinally, start the engine and let it run for 15 minutes uninterruptedSpecifications:Size: 8 oz