 Diesel Cold Flow Improver
(DFF)
A premium fuel additive that lowers diesel fuel cold
flow properties as much as 20°F (11°C).
See Pricing Information or Place an
Order
Package sizes include:
16-oz. Bottle
16-oz. Bottles (case of 12)
AMSOIL Cold Flow Improver (ACF) has been
reformulated to provide maximum cold flow capabilities in
diesel fuels. The new formulation provides superior performance
over the former DFF formulation, which is available while
supplies last.
Cold
Weather and Diesel Fuel
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 or prevent 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).
#1 Diesel
Fuel
One traditional solution to
cold-weather problems in diesel engines is the use of #1 diesel
fuel, which is diesel fuel diluted with kerosene. While #1
diesel fuel has an advantage in low temperature operability,
there are also several disadvantages. The energy content of #1
diesel fuel is about 95 percent 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.
Cold
Weather Performance Parameters
There are
several areas of diesel fuel improvement touted by various cold
flow additive manufacturers, including pour point, cloud point
and cold filter plugging point (CFPP). Many claims can be
misleading, so it is important to understand this terminology
in order to determine which products truly provide superior
performance.
It is important to distinguish between
CFPP and pour point. Many competitive products make great
claims regarding pour point, leading consumers to believe their
products are superior when they actually have an inferior CFPP.
Once fuel surpasses its cloud point, the wax crystals begin to
clog the fuel filter. The CFPP temperature is a more important
characteristic than pour point because the engine will not run
if fuel cannot pass through the fuel filter.
AMSOIL
Cold Flow Improver
AMSOIL Cold Flow Improver
provides superior fuel flow to help prevent filter plugging in
cold temperatures. It is formulated for a broad range of diesel
fuels, including #1 diesel fuel, #2 diesel fuel, biodiesel and
hard-to-treat ULSD fuels. AMSOIL Cold Flow Improver minimizes
the need for blending standard #2 diesel fuel with lower
quality #1 diesel fuel, helping maintain fuel economy and keep
engines functioning normally. It is also excellent for use with
home heating oil and kerosene heat systems.
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 58°F
(32°C), allowing fuel to flow to the engine more easily and
improving diesel engine reliability in cold temperatures. In
addition, AMSOIL Cold Flow Improver lowers the CFPP by as much
as 34°F (18°C) in ULSD.
Concentrated ACF vs. ACF Blended with
Fuel
The new formulation of AMSOIL Cold Flow
Improver will show no signs of solidifying in its concentrated
state in the bottle until the temperature reaches -22°F
(-30°C), a great improvement over the previous formulation,
which solidified in the bottle at 0°F (-18°C). Cold Flow
Improver will only freeze in its concentrated state, and AMSOIL
recommends storing it at temperatures above 0°F (-18°C). If ACF
is allowed to freeze in the bottle it can be thawed and used.
When mixed with diesel fuel, ACF effectively improves diesel
fuel cold temperature properties. It is recommended, however,
that fuel be treated at temperatures above 32° F (0°C). ACF
will not dissolve wax crystals which have already formed in the
fuel.
Application
Information
AMSOIL Cold Flow Improver is
specifically formulated for improving fuel flow, helping
maintain fuel integrity 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 ensure proper treat
ratios.
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