PRI OCIDE kills bugs in fuel…fast! Add PRI OCIDE to your diesel fuel to instantly kill any bacteria, algae, or fungi that has grown in the fuel, and to prevent any further growth. Unlike traditional microbicides that only kill growth on a one-time basis, PRI OCIDE keeps working in your fuel to safeguard it from further unwanted growth. EPA registered, PRI OCIDE is effective in all diesel fuels, MDOs, MGOs, home heating oils, and bunker fuels. PRI OCIDE can also be safely combined with PRI D, so that you can protect your diesel fuel while at the same time, enhance the fuel’s performance. Use PRI OCIDE in each fill up to keep your fuel free from contamination and thereby safeguard your valuable engine. One bottle has 16 oz to treat 960 gallons of fuel- thats 4 cents per gallon! Perfect for Boats, Rv's etc.