Signature Series 100% Synthetic
0W-20 Motor Oil (ASM)
The Top Tier of AMSOIL Synthetic Motor
Package sizes include:
1-Quart BottleAMSOIL Signature Series Synthetic Motor Oil delivers extraordinary lubrication in all
types of automotive gasoline engines. By combining industry-premier synthetic technology with AMSOIL premium
additives, Signature Series Synthetic Motor Oil exceeds the higher performance demands of modern engines. It
withstands the stress of higher horsepower, higher heat and complicated emissions control systems. Signature Series
Synthetic Motor Oil is engineered to outperform competitive conventional and synthetic motor oils. It delivers
long-lasting performance and protection.
1-Quart Bottles (case of 12)
1-Gallon Bottles (case of 4)
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.
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 Synthetic Motor Oil is designed to deliver the
best possible engine protection, cleanliness and performance over extended drain intervals. It reduces vehicle
maintenance and waste oil disposal costs.
Maximizes Fuel Economy
AMSOIL Signature Series Synthetic Motor Oil is designed to maximize energy efficiency for improved 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 efficiency.
Reduces Engine Wear
Signature Series Synthetic Motor Oil provides outstanding anti-wear protection. It has excellent viscosity film
strength to separate metal surfaces and robust anti-wear additives to further reduce wear in metal-to-metal contact
regions for improved engine life.
Reduces Oil Consumption and Emissions
Volatility (burn-off) occurs when oil gets hot, causing high oil consumption and emissions. AMSOIL Signature Series
Synthetic Motor Oil exhibits an extremely low volatility rate; it controls volatility-related oil consumption and
Excels in Extreme Temperatures
AMSOIL Signature Series Synthetic Motor Oil resists thermal (heat) breakdown better than conventional oils. It is
heavily fortified with detergent and dispersant additives to help prevent sludge deposits and keep engines clean.
And unlike conventional oils, Signature Series Synthetic Motor Oil contains no wax, staying fluid in the coldest
winter temperatures for easier starting, improved oil flow and reduced bearing wear.
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 performance specifications:
0W-20 (ASM): API SN (Resource Conserving), SM…; ILSAC GF-5, GF-4…; ACEA A5/B5,
A1/B1; GM 6094M; Ford WSS-M2C945-A, WSS-M2C930-A; Chrysler MS-6395N
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 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 motor oils.
AMSOIL Signature Series Synthetic Motor Oil is recommended for extended drain intervals in unmodified(1),
mechanically sound(2) gasoline-fueled vehicles as follows:
• Normal Service(3) – Up to 25,000 miles or one year, whichever comes first.
• Severe Service(4) – Up to 15,000 miles or one year, whichever comes first.
• In all non-gasoline-fueled vehicle applications, extend the oil change interval according to oil analysis or
follow the OEM* drain interval.
*OEM – Original Equipment Manufacturer
(1) Engines operating under modified conditions (non-stock) are excluded from extended drain
recommendations. Examples include the use of performance computer chips; non-OEM approved exhaust, fuel or air
induction systems; and the use of fuels other than those recommended for normal operation by the manufacturer.
(2) Mechanically sound engines are in good working condition and do not, for example, leak or
consume excessive amounts of oil, are not worn out, do not overheat, do not leak antifreeze and have properly
working emissions control systems. AMSOIL recommends repairing malfunctioning engines prior to the installation of
AMSOIL synthetic oils.
(3) Personal vehicles frequently traveling greater than 10 miles (16 km) at a time and not
operating under severe service.
(4) Turbo/supercharged engines, commercial or fleet vehicles, excessive idling, vehicles with more
than 100,000 miles without prior continuous use of AMSOIL motor oil, daily short-trip driving less than 10 miles
(16 km), frequent towing, plowing, hauling or dusty condition driving.
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
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.
For warranty information, visit www.amsoil.com/warranty.aspx.
TYPICAL TECHNICAL PROPERTIES
Signature Series 100% Synthetic 0W-20 Motor Oil
|Viscosity @ 100°C, cSt (ASTM D-445)
|Viscosity @ 40°C, cSt (ASTM D-445)
|Viscosity Index (ASTM D-2270)
|VISC. CCS, cP (ASTM
|Flash Point °C (°F) (COC) (ASTM D-92)
|Fire Point °C (°F) (COC) (ASTM D-92)
|Pour Point °C (°F) (ASTM D-97)
|NOACK (% weight loss) (ASTM D-5800)
|High Temperature/High Shear Viscosity
@ 150°C, 1.0 X 106 s.-1), cP (ASTM D-4172B)
|Four-Ball Wear Test @ 40 kgf, 75ºC,
1200 rpm, 1 hr, scar diameter, mm (ASTM D-4172)
|Total Base Number (ASTM D-2896)