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.
Protects Your Engine
AMSOIL Signature Series Synthetic Motor Oil provides outstanding anti-wear protection. It develops a
strong fluid film that keeps metal surfaces separated while its robust anti-wear additives further
reduce wear in metal-to-metal contact regions for maximum engine life. In the Sequence IIIG test, which
is normally run for 100 hours, AMSOIL Signature Series Synthetic Motor Oil delivered outstanding wear
protection for the camshaft and lifters, even after doubling the test interval to 200 hours. For
details, see the Double-Length Sequence IIIG Engine Test Technical Study (G3320).
Maximizes Fuel Economy
Signature Series Synthetic Motor Oil is designed to maximize energy efficiency for optimum fuel
economy. Unlike conventional oils, its uniform molecular structure helps it flow more freely and reduce
friction between metal surfaces. Anti-friction additives are included to further improve energy
Extends Drain Intervals
AMSOIL Signature Series Synthetic Motor Oil can extend drain intervals far beyond those recommended for
conventional oils. Its unique synthetic formulation and long-drain additive system are inherently
stable to resist oxidation and neutralize acids over longer periods. Signature Series is designed to
deliver outstanding engine protection, cleanliness and performance over extended drain intervals. It
reduces vehicle maintenance and waste oil.
Keeps Pistons Clean
Excess piston deposits can lead to pre-ignition and engine knocking, which results in lost power,
reduced fuel economy and, in severe cases, engine damage. Signature Series' premium additives and
naturally high resistance to extreme heat help keep pistons clean for maximum engine performance. After
a double-length, 200-hour Sequence IIIG engine test, Signature Series demonstrated outstanding
cleanliness properties and shattered the requirements of a 100-hour test.
Excels in Extreme Temperatures
Signature Series resists thermal (heat) breakdown better than conventional and synthetic motor oils. It
is heavily fortified with detergent and dispersant additives to help prevent sludge deposits and keep
engines clean. Unlike conventional oils, Signature Series contains no wax, staying fluid in sub-zero
temperatures for easier starting, improved oil flow and reduced wear.
Reduces Oil Consumption and Emissions
Volatility (burn-off) occurs when oil gets hot, causing high oil consumption and emissions. Signature
Series resists volatility better than other oils, helping reduce oil consumption and emissions.
AMSOIL Signature Series Synthetic Motor Oil is excellent for use in all types of gasoline-fueled
vehicles. It is recommended for all domestic and foreign vehicles requiring any of the listed
0W-40 (AZF): API SN, SM…; Chrysler MS-12633, MS-10725, MS-10850; Nissan GT-R®
AMSOIL Signature Series Synthetic Motor Oil is compatible with other conventional and synthetic motor
oils. Mixing AMSOIL motor oils with other oils, however, will shorten the oil’s life expectancy and
reduce its performance benefits. AMSOIL does not support extended drain intervals where oils have been
Aftermarket oil additives are not recommended for use with AMSOIL synthetic motor
- Normal Service – Up to 25,000 miles, 700 hours of operation or one year,
whichever comes first, in personal vehicles not operating under Severe Service.
- Severe Service – Up to 15,000 miles, 700 hours of operation or one year,
whichever comes first.
Severe Service: Primarily short trips (less than 10 miles [16 km]);
turbo/supercharged engines; commercial or fleet vehicles; excessive idling; first-time use of AMSOIL
motor oil in a vehicle with more than 100,000 miles; frequent towing, hauling, plowing or driving in
- Modified engines (non-stock) and those using E85 fuel are excluded from extended drain
- Change at the vehicle manufacturer’s recommended drain interval outside U.S. and Canada.
- AMSOIL Ea® Full-Flow Oil Filters are designed for extended change intervals. With other brands,
do not exceed six months or 10,000 miles unless longer intervals are recommended by the vehicle
- Check oil regularly to maintain proper fill levels.
AMSOIL Ea® Full-Flow Oil Filters are designed for extended change intervals. They stop smaller
particles, flow more oil and last longer than regular filters. For best performance, use AMSOIL Ea
Full-Flow Oil Filters.
AMSOIL PRODUCT WARRANTY
AMSOIL products are backed by a Limited Liability Warranty. For complete information visit www.amsoil.com/warranty.aspx.
HEALTH & SAFETY
This product is not expected to cause health concerns when used for the intended application and
according to the recommendations in the Safety Data
Sheet (SDS). An SDS 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
TYPICAL TECHNICAL PROPERTIES
AMSOIL Signature Series Synthetic 0W-40 Motor Oil (AZF)
|Kinematic Viscosity @ 100°C, cSt (ASTM D445)
|Kinematic Viscosity @ 40°C, cSt (ASTM D445)
|Viscosity Index (ASTM D2270)
|CCS Viscosity, cP @ (°C) (ASTM D5293
|Flash Point °C (°F) (ASTM D92)
|Fire Point °C (°F) (ASTM D92)
|Pour Point °C (°F) (ASTM D97)
|NOACK Volatility, % weight loss (g/100g) (ASTM D5800)
|High Temperature/High Shear Viscosity
@ 150°C, 1.0 X 106 s.-1), cP (ASTM D5481)
|Four-Ball Wear Test @ 40 kgf, 75ºC,
1200 rpm, 1 hr, scar diameter, mm (ASTM D4172)
|Total Base Number (ASTM D2896)