AMSOIL Synthetic 5W-40
Premium Diesel Oil (DEO)

Maximum Fuel Economy and Extended Drain
Intervals in Ultra-Low Emission Diesel Engines.
AMSOIL Synthetic 5W-40 Diesel Oil (DEO) is
the premium choice for API CJ-4 emission-quality diesel oil
required by model-year 2007 and newer diesel
engines.
See Pricing Information or
Place an Order
Truckers and commercial businesses contact me for wholesale
pricing.
Package sizes include:
1-Quart Bottle
1-Quart Bottles (case of 12)
1-Gallon Bottle
1-Gallon Bottles (case of 4)
2.5-Gallon Bottle
2.5-Gallon Bottles (twin pack)
30-Gallon Drum
55-Gallon Drum
PRODUCT DESCRIPTION
AMSOIL Synthetic 5W-40 Diesel Oil (DEO) is the premium choice
for API CJ-4 emission-quality diesel oil required by model-year
2007 and newer diesel engines. It delivers extraordinary
lubrication in diesel engines found in commercial, fleet and
personal vehicles. Built with the latest additive and synthetic
base oil technology, AMSOIL Premium Synthetic 5W-40 Diesel Oil
exceeds the higher performance demands of modern engines. It
withstands the stress of heat, soot and acids to help prevent
deposits, wear and corrosion. AMSOIL Synthetic 5W-40 is
wax-free with a broad viscosity range to provide exceptional
cold-weather starting and high temperature protection. It
resists breakdown and offers maximum fuel efficiency over
extended drain intervals.
AMSOIL, the leader in automotive synthetic
lubrication, produced the world’s first API-qualified synthetic
motor oil in 1972. Trust the extensive experience of AMSOIL,
The First in Synthetics,® to do the best job protecting your
engine.
Exceeds Emission System
Requirements
AMSOIL Synthetic 5W-40 Diesel Oil is a low-sulfated ash
formulation that exceeds the requirements for low-emission
quality diesel oil. It is compatible with all exhaust treatment
devices and is designed to extend the service life of diesel
particulate fi lters (DPF).
Extended Drain
Performance
AMSOIL Premium 5W-40 Diesel Oil can extend drain intervals far
beyond those recommended for conventional petroleum oils. Its
unique synthetic formulation and long-drain additive system
(10.4 TBN) deliver superior engine protection, cleanliness and
performance over extended drain intervals. AMSOIL Synthetic
5W-40 Diesel Oil provides
maximum protection for up to 3X the OEM-recommended drain
interval, and further with oil analysis.
Improves Fuel Economy
The advanced synthetic technology used to engineer AMSOIL
Premium 5W-40 Diesel Oil enhances viscosity properties and is
proven to deliver better fuel economy. In fact, the
Environmental Protection Agency’s (EPA) Federal Test Procedure
confirms that AMSOIL 5W-40 Diesel Oil provides up to 3 percent
better fuel economy than conventional 15W-40 diesel oils.
Reduces Oil Consumption and
Emissions
AMSOIL Synthetic 5W-40 Diesel Oil has lower volatility
(burn-off) than conventional petroleum oils. Because less oil
vapor passes into the combustion chamber, oil consumption and
emissions are reduced. Lower volatility helps AMSOIL Premium
Diesel Oil retain its viscosity after high-temperature service
for dependable protection and excellent fuel economy.
Controls Soot-Thickening and
Wear
The advanced synthetic base oils in AMSOIL 5W-40 Diesel Oil are
naturally resistant to soot contamination. That, along with a
heavy fortification of detergent/dispersant additives, keeps
soot particles suspended independently, helping prevent the
formation of larger wear-causing particles. Viscosity increase
is minimized and soot-related wear is controlled.
APPLICATIONS
AMSOIL Premium CJ-4 Synthetic 5W-40 Diesel Oil is recommended
for diesel engines and, where appropriate, gasoline engines
requiring any of the following specifications:
• SAE 5W-40 • API CJ-4, CI-4+, CF, SM
• ACEA E7, E9 • Mack EO-O Premium Plus
• DDC Power Guard 93K218
• Caterpillar ECF-3, ECF-2 • Cummins 20081
• Volvo VDS-4 • MB 228.31 • MTU Type I & II
• MAN 3275 • JASO DH-2 • Global DHD-1
• Renault RLD-3
COMPATIBILITY
AMSOIL Synthetic 5W-40 Diesel Oil is compatible with
conventional and synthetic motor oils. Mixing AMSOIL motor oils
with other oils, however, will shorten the oil life expectancy
and reduce the performance benefits. AMSOIL does not support
extended drain intervals where oils have been mixed.
Aftermarket oil additives are not recommended for
use with AMSOIL motor oils.
SERVICE LIFE
AMSOIL Premium API CJ-4 Synthetic 5W-40 Diesel Oil is
recommended for extended drain intervals in engines that are
unmodified and in good operating condition.
Diesel Engine Service
• Three times (3X) OEM* recommendation, not to exceed 50,000
miles/600 hours or one year, whichever comes first. Drain
intervals may be extended further with oil analysis.
Gasoline Engine Service
• Two times (2X) OEM* recommendation, not to exceed 15,000
miles or one year, whichever comes first.
*Operating conditions and drain intervals for
severe and normal service are defined by the OEM. Refer to your
owner’s manual.
Note: Extended drain intervals are not
recommended when using biofuels containing >10% ethanol or
5% biodiesel (B5). Follow OEM drain intervals or extend drain
intervals with oil analysis.
HEALTH & SAFETY
This product is not expected to cause health concerns when used
for the intended application and according to the
recommendations in the Material Safety Data Sheet (MSDS). An
MSDS is available via the Internet at www.amsoil.com or upon
request at (715) 392-7101. Keep Out of Reach of Children.
Don’t pollute. Return used oil to collection centers.
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TYPICAL TECHNICAL
PROPERTIES
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AMSOIL
Premium API CJ-4 Synthetic 5W-40 Diesel Oil
(DEO)
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Kinematic
Viscosity @ 100°C, cSt (ASTM D-445)
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14.6
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Kinematic
Viscosity @ 40°C, cSt (ASTM D-445)
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87.1
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Viscosity Index
(ASTM D-2270)
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175
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CCS Viscosity @
-30°C, cP (ASTM
D-5293)
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6075
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Flash Point °C
(°F) (ASTM D-92)
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232
(450)
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Fire Point °C
(°F) (ASTM D-92)
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246
(475)
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Pour Point °C
(°F) (ASTM D-97)
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-46
(-51)
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Noack Volatility (DIN 51581)
250°C for 1 hour, % weight loss
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9.7
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Four-Ball Wear Test (ASTM
D-4172: 40kgf, 75°C, 1200 rpm, 1 hr) Scar
diameter, mm
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0.45
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Total Base
Number
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10.4
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High Temperature/High Shear
Viscosity, cP (ASTM D-4683)
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4.0
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Sulfated Ash
Content, wt. %
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1.0
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