Reduce pour point to below –50°F.
Cold Flow Improver for Ultra-Low Sulfur Heating Oil, Diesel & Biodiesel Blends
Exceptional Low-temperature Performance in Blends up to B50
Modern heating oil and diesel blends—especially those containing biodiesel—are more prone to cold-weather operability issues, including waxing, filter plugging, and restricted fuel flow. As biodiesel content increases, maintaining dependable winter performance becomes more challenging and costly for today’s fuel dealers and terminal operators.
OPT™ M5 Cold Flow Improver (CFI) is a revolutionary fuel additive engineered to lower the pour point and cold filter plugging point (CFPP) of ultra-low sulfur heating oil and diesel blended with biodiesel and renewable diesel. Designed for use in soy methyl ester biodiesel and a wide range of distillate fuels, OPT™ M5 delivers exceptional low-temperature performance in blends up to B50.
Differentiate your winter fuel offering with OPT™ M5 and deliver reliable cold-weather performance your customers can depend on.
OPT™ M5 Cold Flow Improver: Key Components
These advanced components work together to improve low-temperature operability, enhance fuel flow, and reduce cold-weather service issues. The result is a reliable, cost-effective winter fuel solution that eliminates the need to heat and insulate outdoor storage tanks at fuel terminals and end-user locations.
Modifying wax crystal formation for improved flow.
These polymers control the size and shape of wax crystals that form in cold temperatures, helping fuel remain fluid and pass through filters more easily. This improves CFPP performance, reducing it to 8-13°F below the fuel’s cloud point.
Keeping wax crystals evenly dispersed and preventing filter plugging.
Anti-settling technology prevents wax crystals from clustering and settling at the bottom of tanks. This helps maintain consistent fuel quality and prevents sudden filter plugging during cold starts or extended storage.
Enhancing overall low-temperature operability.
Specialized synergists work with polymers to further reduce pour point and improve fuel flow. This combination delivers reliable performance across a wide range of distillate and biodiesel blends.
Unrivaled Cold-Weather Protection
Enhance your winter fuel with OPT M5 and experience its many benefits:
Lowering Pour Point to Below –50°F
Reducing CFPP by 8–13°F Below Cloud Point
Ensuring Reliable Winter Performance up to B50
Improving Fuel Flow in Extreme Cold
Minimizing Filter Plugging Risks
Enhancing Fuel Stability & Operability
Decreasing the Need for Kerosene Blending
Lowering Winter Fuel Management Costs
5-gallon
pails
55-gallon
drums
275 & 330-
gallon totes
>> Bulk delivery available. Contact us to discuss smaller packaging options.
Real-World Results
"When I offered B50 to my customer base I leveraged AFS’s M5, neither I or my customers with outside oil tanks were disappointed with its notable performance"
— Cubby Energy?
Beyond a
Cold Flow Additive
We don’t just supply fuel additives; we partner with distributors to optimize winter fuel performance.
Fuel Testing & Monitoring
Schedule a FREE fuel analysis to identify cold-weather operability risks.
Custom Formulations
Get a tailored treatment based on your regional fuel characteristics.
Ongoing Support
Work with a dedicated fuel specialist who understands your winter fuel challenges.
Ensure reliable winter fuel performance.
Treating your fuel with OPT™ M5 Cold Flow Improver is a small investment that helps reduce cold-weather service calls, decrease filter plugging, minimize the need for costly kerosene blending, and deliver dependable fuel performance when it’s needed most. Contact our fuel experts today to learn more about OPT™ M5 and request a FREE fuel analysis.
