AMSOIL Cold Flow Improver (ACF) is formulated with an
advanced deicer to enhance fuel flow and help prevent
fuel filter plugging in cold temperatures. It is
formulated for a broad range of diesel fuels, including
#1 diesel, #2 diesel, biodiesel and ultra-low-sulfur
Reduces Need for #1 Diesel
One traditional solution to cold weather problems in
diesel fuel is using #1 diesel fuel, which is diluted
with kerosene. While #1 diesel fuel has an advantage in
low-temperature operability, it has several
disadvantages. The energy content of #1 diesel fuel is
about 95 percent that of #2 diesel fuel, resulting in
reduced fuel economy and less horsepower. In addition,
the kerosene used in #1 diesel fuel provides less
lubrication for the fuel pump and fuel distributor,
increasing the likelihood for wear on these critical
components. AMSOIL Cold Flow Improver minimizes the need
for blending standard #2 diesel fuel with lower-quality
#1 diesel fuel, helping to maintain fuel economy and
keep engines functioning normally.
Superior Cold Filter Plugging
As the temperature drops, the wax naturally found in
diesel fuel begins to form crystals. 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 40ºF (4ºC), most fuels have a cloud point near
32ºF (0ºC). The point at which the crystals clog the
fuel filter is known as the cold filter plugging point (CFPP).
AMSOIL Cold Flow Improver lowers the CFPP by as much as
34ºF (1ºC) in ULSD.
AMSOIL Cold Flow Improver uses a jet-fuel-type deicer
that disperses water to control ice formation throughout
the fuel system. It inhibits wax crystal formation and
can improve diesel pour point by as much as 58ºF (32ºC),
allowing fuel to flow to the engine more easily and
improving diesel engine reliability in cold
Concentrated ACF vs. ACF
Blended with Fuel
AMSOIL Cold Flow Improver will not show any signs of
solidifying until the temperature reaches -22ºF (-30ºC).
Still, AMSOIL recommends storing Cold Flow Improver at
temperatures above 0ºF (-18ºC). AMSOIL Cold Flow
Improver will only freeze in its concentrated state, not
when it is mixed with fuel. It is designed to be mixed
with diesel fuel, at which point ACF dissolves and
effectively improves diesel fuel cold-temperature
properties. Freezing will not harm ACF and it can be
used after it is thawed.
AMSOIL Cold Flow Improver is specially formulated for
improving the flow of fuel, helping to maintain the
integrity of fuel and preventing the clogging of filters
and injectors. It is excellent for use with diesel
fuels, heating oils and kerosene. Two oz. of AMSOIL Cold
Flow Improver treats five gallons of fuel, or one 16 oz.
bottle for 40 gallons. The clear bottles feature an
easy-to-read graduation label for accurate dispensing,
helping to ensure proper treat ratios.
HARMFUL OR FATAL IF SWALLOWED. HARMFUL IF INHALED OR
ABSORBED THROUGH SKIN. EYE AND SKIN IRRITANT. KEEP OUT
OF REACH OF CHILDREN. Carefully read precautions on
label of AMSOIL Cold Flow Improver container before use.
A Material Safety Data Sheet (MSDS) is available online
on the Corporate AMSOIL website or upon request at