Signature Series 0W-30 Synthetic Motor Oil 

The Next Generation in Motor Oil Technology

Underutilized product in our Sioux Falls Store

This is my #1 pick in any high performance car which calls for 5W-30 or 10W-30. Years ago before the premium oils were called “Signature Series” this was the standalone technology leader at AMSOIL. This product received all the new technology first (before the 20 weights started becoming a major share). But still today it delivers the highest performance where 5W-30 or 10W-30 is called for.  Many of our customers have learned this is the best product for their track cars. It’s been known as a primary choice in road racing where street cars (non-modified) are used.

It’s not “Too Thin”

Many people get hung up on the 0W in 0w-30.. Never be scared of the zero! The weight of the oil is the 2nd number. The W is the Winter weight. But it’s not the actual weight in winter, the 0, 5, 10, 15 or 20 is more of a classification representing a range representing torque loss in different temperature categories. But once the engine is at normal operating temperatures it is a SAE30 just like any other 5W-30 or 10W-30.  But to be a 0W you have to have more advanced additives and base stocks thus why 0-60 racers love the throttle response when this is in the engine.

Others choose the 0W-30 for the cold temperature protection but there is no reason to not use this oil in regions of extreme heat!!

Signature Series 0W-30 Synthetic Motor Oil 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 industry-standard Sequence IIIG Engine Test, AMSOIL Signature Series Synthetic Motor Oil delivered 75 percent more engine protection against horsepower loss and wear than required by a leading industry standard.** For details, see the Double-Length Sequence IIIG Engine Test Technical Study (G3320).

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See why the 0W-30 is your best choice!!


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 efficiency.

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.

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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. Signature Series prevents piston deposits 93 percent better than required to meet the latest API standard.**

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 passenger cars and light trucks. It is recommended for all domestic and foreign vehicles requiring any of the following performance specifications:

0W-30 (AZO): API SN (Resource Conserving), SM…; ILSAC GF-5, GF-4…; ACEA A5/B5, A1/B1; Chrysler MS-6395; GM dexos1™ (supersedes LL-A-025, 6094M and 4718M) Fortified with detergents that exceed dexos1 sulfated ash specifications.

*All trademarked names and images are the property of their respective owners and may be registered marks in some countries. No affiliation or endorsement claim, express or implied, is made by their use. All products advertised here are AMSOIL-engineered for use in the applications shown.


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 mixed.

Aftermarket oil additives are not recommended for use with AMSOIL synthetic motor oils.


  • 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 dusty conditions.

  • Modified engines (non-stock) and those using E85 fuel are excluded from extended drain recommendations.
  • 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 manufacturer.
  • 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.

Buy in the Sioux Falls AMSOIL store at 4610 W. 12th St. or use this Online link to the Amsoil sale page if you are outside of the area.


AMSOIL products are backed by a Limited Liability Warranty. For complete information visit AMSOIL Warranty Information.


Customer Comments:

By Harry 1/4/2017

from undisclosed

I highly recommend the AZO 0W-30 Signature Series oil. I have been using it since it came out and the 0w-30 SSO oil before that. This top of the line oil has kept my car running young, now at 449,000 miles.


Best for cold
By Chris 12/26/2016

from undisclosed

I live in a cold climate, even at -36 there is no need to plug my vehicles block heater in.


For me it’s the BEST!
By Michael 12/22/2016

from undisclosed

I use SS 0W-30 in my daily driver ’06 Mustang. Change interval once a year with an Amsoil filter. The oil flows like water but slippery to the touch. When the engine idles all you hear is the muted sound of wet valves, and when I punch it all you hear is pure muscle; no pings, no knocks, just a well oiled machine!
That car sees only Amsoil products and has 86000 miles on it. I have never had to add a single drop of oil to the engine between oil changes, ever. Every week when I pull the dip stick the same 2 punch holes are wet with oil . . . i rest my case, this is good stuff!