





Opti-Lube Winter Cold Flow Anti-Gel Diesel Fuel Additive - 1 Gallon with Pump & 1 Empty 16oz Dosing Bottle
Make winter fuel treatment easier with one gallon of Opti-Lube Winter, a dispensing pump, and one empty 16oz dosing bottle. Winter helps prevent gelling, improves lubricity, cleans injectors, and protects against rust and corrosion. Refill the dosing bottle from the gallon jug for convenient measuring at fill-ups. Treats up to 512 gallons at the standard winter rate, or 256 gallons at 1/2 fl oz per gallon.
Cold-weather protection for your diesel fuel system
Opti-Lube Winter Cold Flow Anti-Gel Diesel Fuel Additive helps keep diesel flowing as temperatures drop. Its concentrated, multifunction formula helps prevent fuel gelling while improving lubricity to reduce wear on injectors, fuel pumps, and other fuel system components.
Winter cleans injectors, helps reduce deposits, and protects against rust and corrosion. Its demulsifier improves water separation, while added cetane supports easier cold starts, faster warm-ups, and smoother combustion. The formula also helps improve fuel economy and fuel storage stability.
Winter formula benefits
- Helps fuel flow down to -40°F, depending on base fuel and treatment rate.
- Enhances lubricity to help reduce fuel system wear.
- Cleans injectors and protects against rust and corrosion.
- Boosts cetane by up to 3 points to support cold starts and engine performance.
- Improves water separation and helps maintain fuel quality.
- Compatible with biodiesel and all vehicle emissions systems; contains no harmful alcohols.
Bulk refills with convenient measuring
Pair a gallon supply of Winter with a reusable dosing bottle for everyday fill-ups. Use the included pump to transfer additive from the gallon jug into the empty 16oz bottle, then use the bottle’s built-in measuring chamber to portion each treatment.
What is included
- One gallon of Opti-Lube Winter (128 US fl oz).
- One dispensing pump.
- One empty 16oz dosing bottle with a built-in measuring chamber.
The gallon treats up to 512 gallons of diesel at 1/4 fl oz per gallon, or 256 gallons at 1/2 fl oz per gallon. Higher treatment rates reduce coverage. The dosing bottle ships empty; the total additive quantity is one gallon.
Winter treatment directions
- Standard cold-weather treatment, below 32°F (0°C): Add 1/4 US fl oz per gallon of diesel fuel (1:512).
- Extreme cold, below -20°F (-29°C): Add 1/2 US fl oz per gallon or more, as directed on the label (1:256 or stronger).
Mix while both the fuel and additive are above the fuel cloud point and at least 40°F (5°C). Treat before the fuel gels. Cold-flow performance depends on the base fuel and treatment rate. Follow the product label for complete directions. All volumes are US measures.

