Site Last Updated:
March 26, 2012
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Products by Type
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Harley Owners Should Choose AMSOIL!!
"First In Synthetics"
An American Success
How Do I Know The Test Results Are Valid?
AMSOIL and not a
brand name oil?
About Synthetic Oils
Nothing Outperforms Mobil1?
The Federal Trade Commission Cracks Down On Oil Additives
About Oil Additives Like Slick 50 And Prolong?
409,000 Miles Without An Oil Change
Over 535,000 Miles Testimonial
AMSOIL Expands Signature Series Line
AMSOIL 0W-20 (ASM), 5W-20 (ALM), 5W-30 (ASL) and 10W-30 (ATM) Synthetic Motor Oils
join AMSOIL Signature Series 0W-30 to round out the new Signature Series line. Signature
Series 0W-30 is now identified by product code AZO. Product code SSO will be discontinued
and is only available while supplies last.
In addition to being reformulated to meet the latest API SN Resource Conserving
and ILSAC GF-5 industry specifications, the new Signature Series line features all-new
packaging and represents the very best motor oils AMSOIL has to offer, allowing
motorists to take advantage of maximum extended drain intervals. In the interest
of consistency and clarity within the Signature Series line, all five motor oils
are recommended for drain intervals of up to 25,000 miles/one year, whichever comes
first (15,000 miles/one year in severe service conditions).
The new Signature Series line is replacing the previous formulations of the AMSOIL
top-tier oils as inventories dictate; orders will be filled with the older formulations
and packaging until inventory is depleted, which may occur at varying times for
each viscosity. The former Signature Series 0W-30 formulation (SSO) is available
while supplies last.
Formulated for Original Equipment Manufacturer (OEM)-recommended drain intervals.
Formulated for up to 10,000-mile/six-month drain intervals, or longer when recommended
in owners’ manuals or indicated by oil monitoring systems.
Formulated for up to 25,000-mile/one-year drain intervals.
AMSOIL OE Synthetic Motor Oil helps provide better wear control, improved high-
and low-temperature protection and increased fuel economy compared to conventional
oils. The oil drain recommendations for many of today's vehicles extend well beyond
the traditional 3,000-mile interval. AMSOIL OE Oil provides excellent protection
and performance for the entire length of the original equipment manufacturer's recommended
AMSOIL XL Synthetic Motor Oil provides better wear control, improved high- and low-temperature
protection and increased fuel economy compared to conventional oils. Formulated
with extended-drain boost technology, AMSOIL XL Synthetic Motor Oil provides superior
performance for up to 10,000 miles/six months, or longer when recommended in owners' manuals or indicated by electronic oil life monitoring systems.
AMSOIL Signature Series Synthetic Motor Oil delivers extraordinary lubrication in
all types of automotive gasoline engines. Combining the industry-premier synthetic
technology with AMSOIL premium additives, AMSOIL Signature Series Synthetic Motor
Oil exceeds the higher performance demands of modern engines, withstanding 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 and delivers long-lasting performance and protection for
up to 25,000-mile/one-year drain intervals.
5W-20, 5W-30, 10W-30
NEW Z-ROD 10W-30 & 20W-50 for Classics*
Also available are AMSOIL
European Car Formulas in 5W-30 &
10W-40 High Performance 100%Synthetic Oil
20W-50 High Performance 100% Synthetic Oil