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AMSOIL now offers a premium, year-round diesel
fuel additive that provides improved efficiency and
maximum cold-weather performance. AMSOIL Diesel
Concentrate Plus Cold Flow Improver (DFC) combines
the superior detergency of AMSOIL Diesel Concentrate
(ADF) and the excellent anti-gelling properties
of AMSOIL Cold Flow Improver (ACF) in one convenient
package without sacrificing performance.

Improved Efficiency

AMSOIL Diesel Concentrate Plus Cold Flow Improver
is formulated with excellent detergency
properties to help keep injectors, rings, piston
crowns and the fuel pump lubricated. By improving
injector performance, combustion becomes
more efficient and less soot is generated. Diesel
Concentrate Plus Cold Flow Improver cleans
dirty injectors, improving fuel economy by up to
fi ve percent and restoring horsepower to like
new. Acceleration is improved and with regular
use, Diesel Concentrate Plus Cold Flow Improver
continues to enhance performance by keeping
injectors clean. The net savings on fuel expense
can result in no additional cost to vehicle
operation.

Superior Cold-Weather Performance

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 fi lter 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 wax crystals clog the fuel fi lter is known as the cold filter-
plugging point (CFPP). AMSOIL Diesel Concentrate Plus
Cold Flow Improver lowers the CFPP by as much as 34°F
(19°C) in ultra-low-sulfur diesel fuel (ULSD). It also reduces
the pour-point temperature of treated diesel fuel, providing
better fuel delivery to the injectors during cold weather. It is
formulated with a jet-fuel-type deicer that controls ice formation in all sections of the fuel system. Diesel Concentrate
Plus Cold Flow Improver minimizes the need for the use of
#1 diesel fuel, enabling better fuel economy, performance
and lubricity. Product performance may vary depending on
diesel grade and quality.

Pour Point Vs. CFPP

It is important to distinguish between CFPP and pour point.
Many competitors 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.

Ultra-Low-Sulfur Diesel Fuel Challenges

The reduced sulfur levels in modern ULSD result in reduced
lubricity, the property that controls wear in the fuel
injectors and fuel pump. Improving lubricity in ULSD is
difficult because it must be done without adding sulfur
back into the fuel. Additionally, ULSD is subjected to
extensive refining, making it even more difficult to
treat. AMSOIL Diesel Concentrate Plus Cold Flow
Improver is formulated specifically for modern ULSD
fuel. It improves lubricity, helps maintain engine oil
TBN and prevents soot loading.

Recommendations

One 16-oz. bottle of AMSOIL Diesel Concentrate
Plus Cold Flow Improver treats 40 gallons of fuel.
Diesel Concentrate Plus Cold Flow Improver will
show no signs of solidifying in its concentrated state
in the bottle until the temperature reaches -22°F
(-30°C). It will only freeze in its concentrated state,
and AMSOIL recommends storing it at temperatures
above 0°F (-18°C). If Diesel Concentrate Plus Cold
Flow Improver is allowed to freeze in the bottle it can
be thawed and used. When mixed with diesel fuel, Diesel
Concentrate Plus Cold Flow Improver effectively improves
diesel fuel cold-temperature properties. It is recommended,
however, that fuel be treated at temperatures above 32°F
(0°C). Diesel Concentrate Plus Cold Flow Improver will not
dissolve wax crystals which have already formed in the fuel.
AMSOIL Diesel Concentrate Plus Cold Flow Improver meets
federal regulations for ULSD fuel. It complies with federal
low-sulfur content requirements for use in diesel motor vehicles
and non-road engines. While Diesel Concentrate Plus
Cold Flow Improver is formulated specifically for ULSD fuel,
it is also effective in non-ULSD fuels, including biodiesel.
AMSOIL Diesel Concentrate Plus Cold Flow Improver is specifi
cally formulated to improve the lubrication of fuel system
components, improve fuel flow, help maintain fuel integrity
and prevent the fuel filter and injectors from clogging. Diesel
Concentrate Plus Cold Flow Improver is recommended
for diesel-powered vehicles, home heating oil and kerosene
heating systems.