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AMSOIL Diesel Cold Flow Fuel Additive

Product code : ADDCN-EA

Combats fuel gelling in cold weather

  • Lowers cold filter-plugging point (CFPP) by up to 40°F (22°C)
  • Fights gelling in cold weather
  • Prevents wax settling during storage
  • Inhibits fuel-filter icing
  • Safe for use in all diesel fuels, including biodiesel
Warning - Click here for Proposition 65 information for this product

AMSOIL Diesel Cold Flow Fuel Additive



Diesel Cold Flow is formulated for a broad range of diesel fuels, including biodiesel and #1 and #2 ultra-low-sulfur diesel (ULSD). Diesel Cold Flow delivers confidence in your diesel's performance. Its concentrated formula uses unique chemistry to target and eliminate specific performance issues, maximizing diesel power.

Reduces Need for #1 Diesel Fuel
Using #1 diesel fuel is one traditional solution to cold-weather diesel fuel problems. While #1 diesel fuel has an advantage in low-temperature operability, the energy content of #1 diesel fuel is about 95 percent that of #2 diesel fuel, resulting in reduced fuel economy and less horsepower, and it costs more at the pump. Diesel Cold Flow minimizes the need for blending standard #2 diesel fuel with #1 diesel fuel, helping to maintain fuel economy and keep engines functioning normally.

Helps Prevent Gelling
As the temperature drops, the wax naturally found in diesel fuel begins to crystallize. The point at which wax crystals form is known as the cloud point. These wax crystals eventually clog the fuel filter and starve the engine of fuel, preventing it from starting. While low-quality fuels may form wax crystals in temperatures as warm as 40°F (4°C), most fuels have a cloud point near 32°F (0°C). The point at which the crystals clog the fuel filter is known as the cold filter-plugging point (CFPP). Diesel Cold Flow lowers the CFPP by up to 40°F (22°C) in ULSD.

Additional Benefits
Diesel Cold Flow uses a wax anti-settling component not found in other market-leading products. Wax anti-settling additives effectively modify wax crystals, drastically reducing their size. They resist settling and can pass through the filter more effectively, extending operability to a lower temperature.

Prevents Wax Settling
Wax crystals can settle and clog fuel filters (see picture). AMSOIL Diesel Cold Flow is formulated with wax anti-settling additives that drastically reduce the size of wax crystals, preventing them from settling and allowing them to more effectively pass through the filter, improving low-temperature operability.

  • Lowers cold filter-plugging point (CFPP) by up to 40°F
  • Enhances engine reliability in cold temperatures
  • Fights gelling in cold weather
  • Improves low-temperature startability
  • Prevents wax settling during storage
  • Inhibits fuel-filter icing
  • Safe for use in all diesel fuels, including biodiesel
  • Reduces downtime and maintenance costs
  • Alcohol-free

APPLICATIONS
Diesel Cold Flow is specially formulated for improving the flow of diesel fuel, helping to maintain the integrity of fuel and prevent the clogging of filters and injectors. It is excellent for use with diesel fuels, heating oils and kerosene.

RECOMMENDATIONS
Add before filling tank. Diesel Cold Flow must be added at temperatures above the diesel fuel cloud point (the temperature at which wax begins to crystallize). It will not reverse gel or wax crystals once formed. Do not store at temperatures below 0°F (-18°C). Excellent for use with AMSOIL Cetane Boost and AMSOIL Diesel Injector Clean.

AMSOIL PRODUCT WARRANTY
AMSOIL products are backed by a Limited Liability Warranty. For complete information visit www.amsoil.com/warranty/.

AMSOIL Diesel Cold Flow Fuel Additive

Data Bulletin

Warranty

SDS



AMSOIL Diesel Cold Flow Fuel Additive

  • 5 star rating
    Must Have
    By  ELI,  a  Verified Buyer  on  March 24, 2025
    Today’s diesel is missing vital additives that prevent issues and increase longevity, this stuff brings your fuel right up to par.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Fuel treatment
    By  JEFF,  a  Verified Buyer  from  Baudette mn  on  March 20, 2025
    My vehicles run well using this. Jeep ,ram,Mercedes and bobcat.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great for diesel tractor usage in Maine
    By  KIRK,  a  Verified Buyer  from  ME  on  March 16, 2025
    This is one product I can hear and feel the difference of while I'm working my tractor. Cold starts are. effortless and the tractor smokes very little when working, even under a load. Combustion appears to be more complete, the 3 cylinder Yanmar diesel runs more smoothly with Amsoil All in One.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    The best treament in winter
    By  MICHAEL,  a  Verified Buyer  from  Quebec Canada  on  March 02, 2025
    Oustanding treatement for the winter, who eliminate moisture in diesel! In ten years, I never had to emty the water in the water filter of my truck. Wathever of the whim of Mother Nature!
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Gotta try this if you own a diesel
    By  MARVIN,  a  Verified Buyer  from  Tennessee  on  February 18, 2025
    First tank about 20 miles in started noticing a little more pep. Smoother running and idle. By 100 miles definitely an improvement in running. Haven’t had any cold weather at least cold enough to gel. I don’t expect anything but good results from the anti gel properties. If you have been on the fence about it, just buy it and see for yourself the benefits.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Smooth Runnings!
    By  MICHAEL,  a  Verified Buyer  from  Gulf Coast Mississippi   on  February 02, 2025
    Using in a 2025 Sierra 1500 AT4X with the baby Duramax. Don’t have enough miles to give mpg effect but can absolutely state using Amsoil All in One has resulted in a much smoother running engine. Have also noted the consumption rate for DEF has dropped significantly. That in and of itself helps justify the cost of this additive. Highly recommend!
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Best all in one diesel additive!
    By  GREGORY,  a  Verified Buyer  from  Washington State   on  February 01, 2025
    My Cummins gained about 3 mpg. Love this stuff to keep the injectors clean and boost my fuel.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Use in Winter
    By  FRANK,  a  Verified Buyer  on  January 31, 2025
    Use this product in winter. Been -25c and truck has no problems starting and or running
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great products
    By  MICHAEL,  a  Verified Buyer  from  Iowa  on  January 29, 2025
    I have been using AMSOIL diesel products for a while and they are great. Doing testing for winter weather was fun. I compared several different "cold weather additives". Here in Iowa it does get around -10F and at times -20F with wind chill on average. This year it got to -36F. To my surprise, there were other friends and neighbors that gelled up, including agricultural equipment. (NOT ME) So, for free I used AMSOIL RECOVERY, combined with COLD FLOW. Removed all filters, removed/cleaned/reinstalled fuel water separators if equipped, filled those with recovery and dumped rest in diesel tank. Once started put COLD FLOW and ALL-in-ONE in the tank. The reason for this, the tanks are huge. I needed more COLD FLOW than lubing, but I wanted to also lube the complete diesel fuel system. Once I convinced people that these products are the real deal, this is what they use now. From using oil, filters, diesel products, transmission products. THANK YOU AMSOIL
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    All in one review
    By  JOHN,  a  Verified Buyer  from  Northern Illinois   on  January 22, 2025
    We’ve had very cold weather. Coldest was -13. I have had no issues with starting and changed my fuel filter yesterday with no signs of gelling with my 2024 gmc with 15000 miles with a 3.0 duramax
    Bottom Line
    Yes, I would recommend this to a friend.
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