





Opti-Lube Winter Cold Flow Anti-Gel Diesel Fuel Additive - 5 Gallon Pail with Heavy Duty Pump & 2 Empty 16oz Dosing Bottles
Prepare for frequent winter fill-ups with five gallons of Opti-Lube Winter, a heavy-duty pail pump, and two empty 16oz dosing bottles. Winter helps prevent gelling, improves lubricity, cleans injectors, and protects against rust and corrosion. Refill the dosing bottles from the pail for convenient measuring across vehicles and equipment. Treats up to 2,560 gallons at the standard winter rate, or 1,280 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.
A winter treatment supply for vehicles and equipment
This five-gallon kit brings together a bulk supply of Winter, a heavy-duty pail pump, and two reusable dosing bottles. Use the pump to refill the bottles from the pail, then measure individual treatments with each bottle’s built-in measuring chamber. It is a convenient setup for fleets, farms, shops, or drivers with multiple diesel vehicles.
What is included
- One five-gallon pail of Opti-Lube Winter (640 US fl oz).
- One heavy-duty pail pump.
- Two empty 16oz dosing bottles with built-in measuring chambers.
The pail treats up to 2,560 gallons of diesel at 1/4 fl oz per gallon, or 1,280 gallons at 1/2 fl oz per gallon. Higher treatment rates reduce coverage. Both dosing bottles ship empty; the total additive quantity is five gallons.
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.

