Boat Fuel Additives & Antifreezes

Fisheries Supply is your premier supplier of marine fuel additives from top brands like Starbrite, Sta-bil and Stanadyne. Stored fuel can oxidize in the tank, forming sediments from mold and bacteria – so a good marine fuel stabilizer is critical in helping those sediments decompose before they contaminate your fuel lines and filters. We offer a full range of gasoline additives for boats, along with antifreeze coolants, fogging oils, carb cleaners and engine flushes – everything you need to prepare your boat for long periods of downtime. Shop for your boat fuel additives now and save – or browse our wide selection of boat motor oil.