Charles L. Peters Independent AMSOIL Dealer, Tempe, Arizona   765-618-6825 Dealer Number 1266645

AMSOIL® manufactures premium synthetic lubricants and filters for automotive, light and heavy duty truck, motorcycle, RV, off road, marine, personal watercraft, power sports and heavy equipment applications. Tested and proven over billions of miles of service, AMSOIL, INC. has been the leader in synthetic lubrication since 1972.

 Online Store  AMSOIL ProductsAMSOIL INC., The First in Synthetics®, is expanding its product line and introducing the addition of Mothers® Car Care Appearance Products. The Mothers line of products is divided up into four primary categories with additional supplemental products offered as well. Reflections®, FX, Power Products and California Gold/Mothers Original. Each unique product category helps discerning consumers decide what types of products best suit their vehicles as well as their individual outcome intentions.

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Diesel Cold Flow Improver (DFF)
A premium fuel additive that lowers diesel fuel cold flow properties as much as 20°F (11°C).


AMSOIL Cold Flow Improver for diesel fuel is designed for use in Ultra Low Sulfur Diesel fuel (ULSD) and conventional fuels. It functions by modifying wax crystal formation at low temperatures to depress the pour point and improve cold flow filtration properties. AMSOIL Cold Flow Improver contains jet fuel-type deicer to help prevent ice formation in fuels contaminated with water. It is recommended for use with all diesel engines and is compatible with diesel exhaust particulate filters (DPFs). AMSOIL Cold Flow Improver is recommended for use in #2 diesel fuel, #1 diesel fuel, kerosene, heating oil and biodiesel. Add AMSOIL Cold Flow Improver to diesel fuel above the fuel cloud point, which is the temperature wax crystals begin to form. Diesel fuel cloud point varies greatly with some lesser-quality diesel fuels forming wax as warm as 40° F (4°C). AMSOIL recommends treating diesel fuel at a minimum of 32°F (0°C), insuring the fuel is properly treated inmost every case. AMSOIL Cold Flow Improver is designed to control wax crystal formation. It does not reverse wax or gel once formed.

Package sizes include:

16-oz. Bottle
16-oz. Bottles (case of 6)
5-Gallon Pail
55-Gallon Drum


Diesel Cold Flow Improver (DFF) A premium fuel additive that lowers diesel fuel cold flow properties as much as 20°F (11°C).

Buy it Now!

 Note – Do not store below 0°F (-18°C) as product will solidify in its concentrated state when not mixed with fuel. However, once combined with diesel fuel, it effectively lowers diesel fuel cold filter plugging performance as much as 20°F (11°C). It treats at one ounce per five gallons of fuel and is excellent for use with AMSOIL Diesel Concentrate and AMSOIL Cetane Boost Additive.



Designed for use with Ultra Low Sulfur Diesel fuel (ULSD) and conventional fuels.

Works with ULSD that is difficult to treat. Excellent for use with modern diesel engines and does not contribute sulfur.

Formulated for a broad range of diesel fuels, including very waxy, hard-to-treat fuels.

Works with essentially all commercially available diesel fuels.

Provides superior anti-cold filter plugging performance and pour point reduction.

Improves diesel reliability and reduces downtime from cold temperature fuel system failures.

Jet fuel type deicer disperses water to control ice in fuel system.

Protects against moisture commonly found in diesel fuels.

Minimizes the need for Kerosene dilution in cold temperatures.

Reduced need for #1 diesel and associated fuel costs.

Excellent for use with heating fuel oil.

Reduces filter and flow problems common with cold temperature heating oil storage.

Alcohol free.

Compatible with all diesel fuel system components.

DANGER: COMBUSTIBLE. HARMFUL OR FATAL IF SWALLOWED. HARMFUL IF INHALED OR ABSORBED THROUGH SKIN. EYE AND SKIN IRRITANT. KEEP OUT OF REACH OF CHILDREN. Read carefully precautions on label of AMSOIL Cold Flow Improver container before use. For further information, a Material Safety Data Sheet (MSDS) is available upon request at (715) 382-7101, or online at

Online Product Application Guide is an interactive tool that provides you with comprehensive information for all your lubricant, air and oil filtration, spark plug, wire set, and wiper blade needs.

Telephone order 1-800-956-5695 give operator Dealer Number 1266645

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