Fuel Additives

Star*Tron® Tank Cleaner is a concentrated gasoline and diesel fuel tank cleaner made for tanks with extremely heavy sludge and related deposits—use...

Star Brite Gas Stabilizer helps protect gasoline engines and fuel systems during storage by stabilizing fuel and helping prevent corrosion. Key Fea...

Star brite Gas Stabilizer helps protect gasoline engines and fuel systems during storage—so you can keep your equipment ready to fire when the seas...

Cures & prevents ethanol fuel problems.Makes any engine run more smoothly, start more easily. Eliminates & prevents gum, varnish and carbon...

StarTron Gas Additive small floor display24 ea. 93008-8 oz.12 ea. 93016-16 oz.1 oz. Treats 16 gallons of gasoline. Overdosing is not harmful.

StarTron Gas Additive Countertop Marine Display is a ready-to-sell small countertop display made for treating gasoline between top-ups. Each displa...

Starbrite Star Tron Diesel Additive (93105) is a concentrated diesel enzyme treatment designed to help engines start more easily, run more smoothly...

Star brite Star Tron Diesel Additive (93100) is a concentrated diesel fuel treatment formulated to help engines start more easily and run more smoo...

The Sierra Gasoline Fuel Tester is a practical diagnostic tool for checking fuel quality by measuring alcohol (ethanol) content. Key Features Test...

ComStar Hum-Out Diesel Fuel Biocide — 16 ozDiesel fuel tanks on boats are a prime environment for microbial growth. Bacteria, algae, and fungi thri...

Mercury / MerCruiser Quicksilver Engine Cleaner — 858080KC3 The Mercury Quicksilver 858080KC3 Engine Cleaner (commonly listed as 858080K03 / 92-85...

Premium methyl hydrate (methanol) formulated for marine fuel system maintenance and winterization. This 946ml bottle provides essential protection ...

AMSOIL Diesel Cetane Boost for Marine Diesel EnginesThis cetane booster is a fuel treatment made for marine diesel engines. It is built to raise ig...