AMSOIL Synthetic 5W-40 Premium Diesel Oil (DEO)
AMSOIL Synthetic 5W-40 Premium
Diesel Oil (DEO) is the premium choice
diesel oil for model year 2007 and newer
heavy-duty and pickup truck diesel engines requiring
API CJ-4 emission quality oil standards.
Pricing Information or Place an Order
Package sizes include:
1-Quart Bottles (case of 12)
1-Gallon Bottles (case of 4)
AMSOIL Synthetic 5W-40 (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 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, corrosion and
wear. AMSOIL Synthetic 5W-40, with its broad viscosity range,
is ideal for winter and summer use. It resists breakdown and can
extend drain intervals when monitored by oil analysis.
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 modern requirements for low emission quality
diesel oil. It is compatible with all exhaust treatment devices and
is designed to extend the service life of particulate filters.
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.
Maximizes Fuel Economy and
Reduces Oil Consumption
AMSOIL Synthetic 5W-40 Premium Diesel Oil has a
very low high temperature volatility rate (burn off).
Because less oil vapor passes into the combustion
chamber, oil consumption and emissions are
reduced. Additionally, lower volatility helps AMSOIL
Synthetic 5W-40 retain its viscosity after high temperature
service for continued dependable protection
and excellent fuel economy.
Excels in Extreme Temperatures
AMSOIL Synthetic 5W-40 Premium Diesel Oil resists
thermal (heat) breakdown, oxidation and sludge
formation better than conventional petroleum oils.
And unlike conventional oils, AMSOIL 5W-40 contains
no wax. It stays fluid in cold temperatures for improved
oil flow, reduced bearing wear and easier starting.
AMSOIL Synthetic 5W-40 Premium Diesel Oil
replaces 5W-40, 10W-40 and 15W-40 viscosity oils. It
is “backwards compatible” with pre-2007 diesel engines
and recommended for newer and older diesel and
gasoline engines and other applications requiring the following
• API CJ-4, CI-4+, CH-4, CF
• API SM, SL, SJ...
• ACEA E7
• Mack EO-O Premium Plus
• DDC Power
• Caterpillar ECF-3, ECF-1
• Volvo VDS-4
• MB 228.3
• MTU Type II
AMSOIL Synthetic 5W-40 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.
AMSOIL Synthetic 5W-40 Premium Diesel Oil is recommended
for use according to the longest service
interval established by the engine, vehicle or equipment
manufacturer. Drain intervals may be extended when
monitored by oil analysis.
AMSOIL Ea™ and Donaldson Endurance™ full flow oil
filters are designed for extended drain intervals. They
stop smaller particles, have less restriction and last longer
than regular filters. For best performance use AMSOIL Ea™
or Donaldson Endurance™ oil filters.
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 upon request at
715-392-7101 or via the Internet at www.AMSOIL.com.
Keep Out of Reach of Children. Don’t pollute. Return
used oil to collection centers.
Synthetic 5W-40 Premium
Diesel Oil (DEO)
Viscosity @ 100°C, cSt (ASTM D-445)
Viscosity @ 40°C, cSt (ASTM D-445)
Index (ASTM D-2270)
@ -30°C, cP (ASTM D-5293)
Point °C (°F) (ASTM D-92)
Point °C (°F) (ASTM D-92)
Point °C (°F) (ASTM D-97)
Volatility (DIN 51581) 250°C for 1
hour, % weight loss
Wear Test (ASTM D-4172: 40kgf, 75°C,
1200 rpm, 1 hr) Scar diameter, mm
Temperature/High Shear Viscosity,
cP (ASTM D-4683)
Sulfated Ash Content, wt. %