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 (case of 2)
16-Gallon Keg
30-Gallon Drum
55-Gallon Drum

PRODUCT DESCRIPTION

AMSOIL Synthetic 10W-40 Motor Oil is specially formulated to provide superior protection and
performance in a wide variety of demanding applications. By incorporating high-quality synthetic
base stocks and a superior high-zinc additive package, AMSOIL Premium Protection Oil exceeds the
needs of large and small gasoline or diesel engines in cars, motorcycles, trucks, motor homes,
maintenance equipment, heavy equipment, street rods and marine applications. It is ideal for high-
mileage vehicles, vehicles with flat-tappet cams and high-stress vehicles subject to hot
temperatures, heavy hauling, trailer pulling or off-road use. AMSOIL Premium Protection Oil resists
oxidation, neutralizes acids, inhibits corrosion, reduces wear and protects against deposits. It
provides the extra anti-wear protection required by engines with flat-tappet cams and high-tension
valve springs. AMSOIL Synthetic 10W-40 Premium Protection Motor Oil offers flexibility and
performance beyond conventional oil for convenience and trouble-free operation. 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.
 

Provides Superior Wear Protection

AMSOIL Synthetic 10W-40 Premium Protection Motor Oil is a high viscosity oil engineered to protect
against metal-to-metal contact. It resists viscosity shear and is formulated with a heavy treatment
of zinc and other anti-wear additives for excellent protection of gears, bearings, cam lobes and
other high-pressure components in engines and transmissions. AMSOIL Premium Protection Synthetic
Motor Oil helps extend engine life.
 

Exceeds the Requirements of Wet Clutch Transmissions

AMSOIL Premium Protection Synthetic Motor Oil contains no friction modifiers, making it ideal for
motorcycles, maintenance equipment and other wet clutch transmission applications. Formulated to
prevent clutch glazing and slippage, it helps insure smooth clutch engagement and long term,
dependable transmission operation. AMSOIL Synthetic 10W-40 Motor Oil reduces clutch wear for
extended transmission life.
 

Resists Oxidation and High Temperature Breakdown

AMSOIL Premium Protection Synthetic Motor Oil is specifically formulated to overcome the thermal
deficiencies common to conventional petroleum oils. Volatilization (burn-off), oxidation and
excessive deposit formation from high heat are greatly reduced. Viscosity thickening is controlled
and engines run cleaner, promoting cooler operation and long engine life in air- or liquid-cooled
engines.
 

Extends Drain Intervals in Gasoline and Diesel Engines

Superior AMSOIL synthetic base stock and additive technology exceeds the requirements of both
gasoline and diesel engines. AMSOIL Premium Protection Motor Oil is designed to neutralize acids,
disperse soot and last longer in service than conventional oils.
 

APPLICATIONS

AMSOIL Synthetic 10W-40 Premium Protection Motor Oil is a multi-use, premium synthetic lubricant for
applications that require or benefit from a higher viscosity oil. It is recommended for air and
liquid cooled, large or small gasoline and diesel engines, transmissions and chaincase applications
where 10W-40 oil is required with any of the following specifications:
 

• API SL, SJ, SH, SG
• API CI-4 Plus, CH-4, CF, CF-2
• ISO-L-EMA • Caterpillar ECF-1
• JASO MA (Motorcycle) • MAN 271/3275 • MTU Type 2
• Cummins 20071/20072/20076/20077 • VDS-2, VDS
• Mack EO-M+ • ACEA A3/B3, E3, E5 • MB 228.3, 229.1
• Detroit Diesel 93K214

MIXING AMSOIL

AMSOIL Synthetic 10W-40 Premium Protection Motor 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 Synthetic Oils.
 

SERVICE LIFE

AMSOIL Synthetic 10W-40 Premium Protection Motor Oil is recommended for extended intervals in
unmodified, mechanically-sound vehicles or equipment as follows:
 

Diesel Engine Service
•Normal Service - Up to 25,000 miles or one year, whichever comes first, or longer based on oil analysis.
•Severe Service - Up to 15,000 miles or one year, whichever comes first, or longer based on oil analysis.

Gasoline Engine Service
•Normal and Severe Service - Up to 15,000 miles or one year, whichever comes first, or longer based on oil analysis.

Motorcycles, Small Engines, Stationary Engines, Heavy Equipment and Other Applications
•Extend drain intervals based on oil analysis or follow the manufacturer-recommended drain interval.

AMSOIL Ea™ Full-Flow Oil Filters are designed for extended drain intervals. They stop smaller
particles, flow more oil and last longer than regular filters. For best performance, use AMSOIL Ea™
Full-Flow Oil Filters and replace at the time of oil change. Other oil filters should be changed at
standard OEM* intervals.
 

*OEM - Original Equipment Manufacturer

TYPICAL PHYSICAL PROPERTIES  AMSOIL High Performance Synthetic 10W-40 Motor Oil (AMO) Kinematic Viscosity @ 100°C, cSt (ASTM D-445) 14.6 Kinematic Viscosity @ 40°C, cSt (ASTM D-445) 90.5 Viscosity Index (ASTM D-2270) 169 CCS Viscosity @ -25°C, cP (ASTM D-5293) 5501 (-25) Pour Point °C (°F) (ASTM D-97) -44 (-47) Flash Point °C (°F) (ASTM D-92) 228 (442) Fire Point °C (°F) (ASTM D-92) 250 (482) High Temperature/High Shear @ 150°C and 1.0 X 106 s-1, cP (ASTM D 4683), cP 4.3 Four Ball Wear Test (ASTM D 4172 @ 40 kgf, 150°C, 1800 rpm, 1 hour, Scar in mm) 0.40 Noack Volatility, % weight loss (g/100g) (DIN 51581) 6.7 Total Base Number 12.1

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