AMSOIL Diesel Concentrate (ADF) provides maximum diesel
operating efficiency. It compensates for the variances
in quality of different fuels (including biodiesel) and
the deficiencies of today’s Ultra Low Sulfur Diesel fuel
(ULSD) for better engine operation. New engine
technology, tighter tolerances and emission regulations
require high-quality diesel fuel for long-term engine
operability. AMSOIL Diesel Concentrate meets the low
sulfur mandate. It improves diesel fuel quality to
exceed today’s stringent performance requirements.
AMSOIL Diesel Concentrate extends equipment life, lowers
operating costs and improves diesel performance.
Fuel Economy and Restores Horsepower
As diesel engines are used, they become less efficient
over time. Fuel injector deposits interrupt spray
patterns, causing poor fuel atomization, incomplete
combustion, excessive emissions and smoke. Tests prove
that AMSOIL Diesel Concentrate cleans dirty injectors,
improving fuel economy by up to five percent and
restoring horsepower to like new. Acceleration is
improved and with regular use, AMSOIL Diesel Concentrate
continues to enhance performance by keeping injectors
clean. The net savings on fuel expense can result in no
additional cost to vehicle operation.
Pump and Injectors
Ultra low sulfur diesel fuel has significantly reduced
lubricity – a critical property in controlling wear in
fuel pumps and injectors. AMSOIL Diesel Concentrate adds
back all the lubricity properties needed and more. Fuel
pump and injector service life is extended, saving time
and money on maintenance costs.
Cylinder Wear, Retains Engine Oil TBN Longer
With high rates of exhaust gas recirculation (EGR) in
modern diesel engines, acids from combustion are of
particular concern. AMSOIL Diesel Concentrate
neutralizes acids during combustion. It helps reduce
acid caused cylinder wear and helps extend engine oil
TBN, maintaining engine oil quality longer for better
AMSOIL Diesel Concentrate is a powerful cleaner that
cleans fuel injectors and piston rings for improved
combustion and better sealing. It minimizes soot
generated from incomplete combustion and helps keep soot
out of the crankcase. Reduced soot loading controls soot
related wear and engine oil viscosity increase.
Fuel degradation can cause gums, which increase deposits
and the chance of filter plugging. AMSOIL Diesel
Concentrate significantly improves the oxidation and
thermal stability of diesel fuel. It overcompensates for
ultra low sulfur diesel fuel’s potential stability loss
caused by extra processing and sulfur removal. Diesel
fuel treated with AMSOIL Diesel Concentrate easily meets
the requirements of the National Council of Weights and
Measures (NCWM) Premium Diesel Fuel Specification for
resisting diesel fuel degradation.
AMSOIL Diesel Concentrate is an alcohol-free product
that protects fuel systems against water contamination.
It helps prevent fuel/water emulsions and it protects
metal against rust. Water can be drained easier and fuel
filters are less likely to plug, ensuring drivability.
AMSOIL Diesel Concentrate provides many of the same
benefits in heating oil furnace applications. It
provides fuel oil storage stability, water stability,
rust protection, fuel oil filter longevity, and its
exceptional cleaning properties are expected to keep
fuel oil nozzles clean for proper spray in the
combustion chamber. AMSOIL Diesel Concentrate promotes
trouble-free operation. AMSOIL Cold Flow Improver is
recommended where fuel oil is stored outside.
AMSOIL Diesel Concentrate is recommended for use with
all types of heavy- and light-duty, on- or off-road and
marine diesel engines. Recommended mix ratio is one oz.
of additive per five gallons of fuel. Use with every new
tank of fuel for the best performance and protection
against fuel pump wear, injector wear and injector
deposits. Compatible with all types of exhaust emission
systems such as diesel particulate filters (DPFs). Add
Diesel Concentrate to fuel before storage. Excellent for
use with AMSOIL Cetane Boost and AMSOIL Cold Flow
Improver. This diesel fuel additive complies with the
federal low sulfur content requirements for use in
diesel motor vehicles and non-road engines.
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 Diesel Concentrate
container before use. For further information, a
Material Safety Data Sheet (MSDS) is available upon
request at (715) 392-7101, or online at
on the Corporate AMSOIL website.