AMSOIL 5W-30 Signature Series 100% Synthetic

A New Level of Motor Oil Technology

 

Editors note:
Nothing is held back in the additive blend for this and other Signature Series products. This is why it’s the best in the industry. I’ll quote AMSOIL’s Vice President Dean Alexander, “When selecting additives and base stocks we are the only company who avoids making decisions based on cost. If there is a better product or a trend for something better AMSOIL is known in our industry to be the first to get it to the consumer with our legendary blending experience. That is our business, the business of being the best, not turning profits for share holders.”
You can also see this technique being used in the Absolute Efficiency Oil Filters.

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signature series 5W-30Engineered for enthusiasts seeking maximum protection and performance. Precision-formulated with cutting-edge technology and a longstanding devotion to making the world’s best motor oil. The result: engine protection that blows the doors off the highest industry standards.

• 50% more cleaning power vs. AMSOIL OE Motor Oil
• Ideal for turbos & direct injection
• Guaranteed protection for up to 25,000 miles or 1 year

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Protects Against Engine Wear

AMSOIL Signature Series Synthetic Motor Oil 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. The Sequence IVA Engine Test, which must be passed to meet the industry-standard API SN specification, simulates extended periods of stop-and-go driving. For 100 hours, the test engine cycles between 50 minutes of idling and 10 minutes of elevated rpm – conditions that encourage engine wear. The camshaft is then measured for wear in 84 locations and an average score is determined. We used Signature Series 0W-20, the lightest viscosity in the line, to further increase the severity of the test. AMSOIL Signature Series Synthetic Motor Oil provided 75 percent more engine protection against horsepower loss and wear1 than required by the industry standard, extending the life of vital components like pistons and cams.

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SEQUENCE IVA ENGINE TEST Lower number = less wear
SEQUENCE IVA ENGINE TEST
Lower number = less wear
Lack of Cam wear

After rigorous third-party testing, the cam lobes show little-to-no wear.

Protects Pistons from Low-Speed Pre-Ignition

We armed Signature Series with an
advanced detergent system that protects against harmful deposits and low-speed
pre-ignition (LSPI). Most new engines feature gasoline direct injection (GDI), often
combined with a turbocharger to boost power and improve fuel economy. These new
technologies, when combined with a poorly formulated motor oil, promote LSPI and threaten
engine operation. LSPI is the spontaneous ignition of the fuel/air mixture prior to
spark-triggered ignition. It occurs in today’s advanced engines and is much more destructive
than typical pre-ignition.

Original equipment manufacturers (OEMs) like GM* have
addressed the issue by designing tests to determine a motor oil’s ability to prevent
LSPI. The GM test allows up to five LSPI events to receive a passing score.
Signature Series Synthetic Motor Oil provided 100 percent protection against LSPI1 –
zero occurrences were recorded.

Protects Turbochargers

Our unique synthetic formulation is inherently stable to resist oxidation and neutralize acids. Signature Series Motor Oil provides outstanding protection against deposits common to high-temperature engine environments. The tremendous heat and stress turbos create can cause some oils to break down and form harmful bearing deposits through a process known as turbo coking. Over time, turbos can suffer reduced performance or fail altogether.

We challenged Signature Series to the GM Turbo Coking Test, which consists of 2000 cycles of extreme heat soaks. An oil must limit the temperature change within the turbocharger to 13 percent or less to pass the test. Signature Series limited the temperature increase to only 3.6 percent, protecting theturbocharger 72 percent better than required2 by the GM dexos1® Gen 2 specification.

Protects Turbochargers

Signature Series Badge

Extends Drains: Protection Guaranteed

AMSOIL Signature Series Synthetic Motor Oil provides reserve protection, allowing you to go longer between oil changes if you choose – up to 25,000 miles, 700 hours of operation or one year, whichever comes first*. Our 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 – guaranteed. It provides peace of mind so you can fit oil changes into your schedule.

1 Based on independent testing of AMSOIL Signature Series 5w-30 motor oil, in the LSPI engine test as required for the GM dexos 1® Gen 2 specification.
2 Based on independent testing of AMSOIL Signature Series 5W-30 in the GM turbo coking test.
3 vs. AMSOIL OE Motor Oil
4 Based on independent testing of AMSOIL Signature Series 5W-30 in the ASTM D6593 engine test for oil screen plugging as required by the API SN specification.
* 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 developed by AMSOIL for use in the applications shown.

Preserves Horsepower

The extreme durability of Signature Series 100% Synthetic 5W-30 Motor Oil ensures your engine runs stronger, for longer. We installed Signature Series 5W-30 Synthetic Motor Oil in a Ford* F-150 with a new 3.5L Ecoboost engine to test its ability to protect turbocharged direct-injection (TDGI) engines from torque and horsepower loss during extended drain intervals up to 25,000 miles. Power sweeps were done at the beginning and end of the test to evaluate horsepower and torque retention. As the graph shows, Signature Series helped maintain engine performance throughout the 100,000 mile test.

Horsepower increased thanks to AMSOIL Signature series

 

Limits Oil Consumption

Signature Series 5W-30 has a uniform molecular structure that limits evaporation and keeps it where it’s needed most – protecting your engine. Volatility (burn-off) occurs when oil gets hot, causing lighter molecules to burn off or evaporate. This leads to oil thickening, additive imbalance, higher emissions and oil consumption. The NOACK Volatility test is the industry standard for evaluating motor oil high temperature evaporation. It measures the percentage of burn-off after a motor oil is placed under constant airflow at 482ºF for 1 hour. A lower number indicates a better resistance to evaporation. Signature Series falls far below the API limit for volatility, reducing the need for frequent oil top-offs and limiting vehicle emissions.

less oil consumption

Easier Cold-Starts

Signature Series Synthetic Motor Oil does not contain paraffins (wax) and stays fluid in temperatures of -58ºF and lower. Extreme cold causes other motor oils to thicken, starving vital moving parts of lubrication, accelerating wear and even preventing vehicles from starting. Signature Series provides 66 percent better cold-temperature performance for easier starting, better fuel economy, improved oil flow (as seen below) and reduced wear.

Cold flow and srarts

Maintains Protective Viscosity

We formulated Signature Series with superior thermal durability that resists breakdown better than conventional and synthetic motor oils. The Sequence IIIH Test uses the Chrysler 3.6L Pentastar engine to evaluate a motor oil’s ability to resist the damaging effects of heat. The test is conducted with oil temperatures of 304ºF, 100ºF hotter than normal operation, to accelerate oil thickening and deposits. Despite the extreme conditions, Signature Series kept pistons clean and held thickening to only 6 percent, a minimal amount compared to the proposed specification limit of 150 percent.1 This stay-in-grade performance helps maintain maximum power and fuel economy while also ensuring advanced technologies like variable valve timing (VVT) operate as designed throughout the entire drain interval.

Viscosity Retention

1 Based on proposed ILSAC GF-5 Plus specification.
* 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 developed by AMSOIL for use in the applications shown.

 

AMSOIL PRODUCT WARRANTY

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

Keep Out of Reach of Children. Don’t pollute. Return used oil to collection centers.

 

Technical properties can be seen on the ordering page but be sure to visit the Omaha location where you can save on shipping and other associated costs.

 

Customer Comments:

5W-30
By Luis 1/4/2017

from undisclosed

I use it on my chevy vehicles. The product and lab reports on it speak for themselves. This is a must product if your vehicle requires it.

 

Signature Series 5W-30
By Michael 12/24/2016

from undisclosed

Excellent product. Will continue to use and purchase.

 

My oil of choice
By Mark 12/24/2016

from undisclosed

On a friends recommendation I switched to Amsoil for use in my 2005 Jeep Liberty Diesel. I sold the Liberty after 3 years but have continued to use Amsoil products in all of my Vehicles, generators, lawn tractors, push mowers, and snow blower. The Signature Series 5W-30 is my oil of choice for my GMC Sierra, and my wife’s
Lincoln MKX. I highly recommend trying all of Amsoil’s products, everything I have tried I have been completely satisfied with, oils, grease, sprays, fuel additives, filters, ect….

 

The Best Lifeblood for your Vehicle!
By Stephen 12/21/2016

from undisclosed

I use Amsoil 5W30 Signature Series in all 3 of my vehicles. After using the 10W40 in my motorcycle and watching the “White Papers” comparative study on 5W30 motor oils done by a reputable 3rd party test lab I was convinced that this was the best oil on the market. And they don’t have other product lines to fall back on if sales don’t demonstrate it is a quality product. The “White Papers” comparative study results really says it all. I am an Amsoil customer for life and have also convinced a family member who also happens to drive one of the vehicles in our family that you cannot lose but only win with Amsoil. He is sold on it too!

 

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