What Does Viscosity Mean and Its Importance?

How does viscosity affect your engine, mileage and performance?

Motor oil viscosity is the measure of its resistance to flow. Low-viscosity oil (e.g. 0W-20) flows faster than high-viscosity oil (e.g. 20W-50).

To illustrate, think of water and honey. When poured from a container, water flows much faster than honey.

For more good information on oil viscosity including easy to understand charts, read this blog:

What Does Viscosity Mean (and How Does it Affect Your Engine)?

The Best Synthetic Motor Oil

What is the best synthetic motoroil?

AMSOIL provided proof of superior performance for it's Signature Series Synthetic Motor Oil.

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AMSOIL Signature Series has the proof of superiority.

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AMSOIL Signature Series

Signature Series: Maintains Protective Viscosity

The main bearings in your vehicle rely on an oil film thinner than a sheet of paper. When motor oil loses viscosity due to a process called shear, it can fail to provide the required level of wear protection.

Shear (often called mechanical shear) occurs when one layer of oil moves in the opposite direction of another layer of the same oil. This often occurs between the piston and cylinder wall. These two oil films move in opposite directions under intense heat and pressure.

AMSOIL synthetic motor oil features naturally shear-resistant base oils combined with top-tier viscosity improvers to withstand extreme heat and shearing forces. In fact, Signature Series fights viscosity breakdown better than the competition*, providing superior protection of pistons, cams and bearings.

Signature Series stands up to the potentially devastating effects of viscosity breakdown and provides maximum engine protection.

*Based on independent testing of AMSOIL Signature Series, Schaeffer’s Supreme 9000 Full Synthetic, Lucas Synthetic, Valvoline Conventional Daily Protection, Mobil 1 Annual Protection and Pennzoil 5W-30 in the Kurt OrbahnTest. Oils purchased on 5/3/18.

For product information on AMSOIL Synthetic Motor Oil.

Understanding European Motor Oil Standards

European Motor Oil Specifications Explained

It’s important to use the right motor oil for your European vehicle, but the sea of specifications can make it a challenge. AMSOIL European Car Formula finds the sweet spot of emission compatibility and complete engine protection for every application.

The European Automobile Manufacturers’ Association (ACEA) establishes lubricant standards for Europe, similar to the American Petroleum Institute (API) in the United States. ACEA recognizes that European engines differ from U.S. engines in both design and operating conditions. European OEMs often maintain their own motor oil performance specifications and play a larger role in their development than their U.S. counterparts. Volkswagen* drivers, for example, must use an oil that meets the requirements of VW’s own performance specs. The same holds for Mercedes*, BMW*, Porsche* and other European vehicles. 

Many European vehicles available in North America today feature gasoline and diesel engines with emissions systems that are highly sensitive to the SAPS content of motor oil. These advanced emissions systems require lower SAPS formulations to properly function for a long period of time. The required formulations match the exacting engine oil specifications of ACEA and European OEMs to ensure they are compatible with current emissions systems while still providing engine protection.

EUROPEAN CAR FORMULA SYNTHETIC MOTOR OIL

• Engineered to meet or exceed European MANUFACTURERS.SPECIlCATIONS
• Balanced formulations that consider the needs of modern exhaust treatment devices
• Excellent protection for gasoline and diesel engines
• Fights sludge for superior engine cleanliness

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

Signature Series Keeps Engines Cleaner Than Other Synthetic Motor Oils

AMSOIL Signature Series

In general, the higher an oil’s TBN, the better its ability to neutralize contaminants such as combustion by-products and acidic materials. Higher TBN oils neutralize a greater amount of acidic material, which results in longer oil life and cleaner engines.

TBN levels decrease as the oil remains in service. When the level reaches a point where it can no longer protect against corrosion, the oil must be changed.

The TBN Test

The Total Base Number Test (ASTM D2896) uses a series of chemical reactions to measure the alkaline additives in a motor oil. We recognize the value of formulating motor oils with high TBN, and AMSOIL Signature Series Synthetic Motor Oil features the highest TBN of the oils tested.

AMSOIL Signature Series is fortified with a heavy treatment of detergent additive and it delivers 30% more acid neutralizing power1 than Mobil 1, and 36% more than Royal Purple, helping engines to stay cleaner, longer.

The AMSOIL Advantage

AMSOIL synthetic lubricants feature a large dose of quality additives that consistently deliver high TBN for the life of the oil. They neutralize acidic contaminants and keep them in suspension to maximize engine protection. AMSOIL lubricants use detergent and dispersant additives to significantly reduce sludge and carbon deposit formation. In the Total Base Number Test (ASTM D2896), AMSOIL Signature Series 5W-30 Synthetic Motor Oil demonstrated the highest TBN of the oils featured in the test, helping it deliver reliable protection for extended drain intervals.

1Based upon independent testing of Mobil 1 Annual Protection Full Synthetic 5W-30, Royal Purple High Performance 5W-30 and AMSOIL Signature Series 5W-30 in ASTM D2896. Oils purchased 05/03/18.

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 Signature Series and Turbochargers

AMSOIL Signature Series Protects Turbochargers

The turbocharger/direct fuel injection combo has emerged as automakers’ favored choice for producing powerful engines and meeting government fuel-economy requirements. The increased airflow turbos generate enables an engine to burn more fuel and produce more power, but this power comes at a cost. The tremendous heat and stress turbos create 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.

How Turbos Could Slow You Down

The deposits common to turbochargers can lead to:

• Blocked oil passages, oil starvation and eventual failure
• Reduced turbine speed – resulting in lower boost pressures, reduced performance and poor efficiency
• Oil breakdown and oil burning
• Expensive turbo rebuild or replacement 

The GM Turbo Coking Test

The Turbo Coking Test was designed to simulate the extreme operating conditions of a turbocharged engine. It evaluates a motor oil’s ability to resist deposit buildup in the oil passages and bushings of a turbocharger. Temperature increases within the turbo and the weight of any deposits are recorded.   

Test Parameters

Engine   -  2012 GM 1.4L

Duration   -  2,000 cycles of extreme heat soaks – approximately 537 hours

Measures   -  A motor oil’s ability to resist deposits in a turbocharger’s oil passages and bushings

Simulates   -   High-heat operation of a turbocharged engine 

Requirement   -  Temperature change within the turbocharger limited to 13 percent

Signature Series protects turbochargers 72% better than required by GM dexos1® Gen 21

The GM Turbo Coking Test requires an oil to 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, controlling heat and proving it protects against deposits common to high-temperature engine environments.

For more information or to buy AMSOIL Signature Series Synthetic Motor Oil

1Based on independent testing of AMSOIL Signature Series 5W-30 in the GM Turbo Coking Test as required for the GM dexos1 Gen 2 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.

Premium Protection For High-Horsepower Chrysler & Nissan Applications

New synthetic 0W-40 motor oil rounds out the Signature Series line. 

AMSOIL Synthetic 0W-40

Muscle cars ruled the American landscape in the 1960s and ‘70s, and many of those signature models, such as the Dodge Challenger and Charger, are now available in faster, more powerful designs. In this day and age, it’s not uncommon to find production models that top 600 horsepower and 600 pound-feet (lb-ft) of torque. In fact, the 2015 Challenger Hellcat is the fastest production muscle car of all time, kicking out 707 horsepower and
650 lb-ft of torque.

Powerful muscle car and big truck engines need a high-performance lubricant, and much like these powerful vehicles, AMSOIL sets the bar high when it comes to performance. AMSOIL established all-new standards for motor oil quality and performance when it introduced the world’s first synthetic motor oil to meet American Petroleum Institute (API) service requirements in 1972, and it continues to produce the top-performing lubricants available on the market.

New Signature Series 0W-40 Synthetic Motor Oil

Along with the new 5W-50 viscosity formulated for high-horsepower Ford Mustang engines, the Signature Series line now includes a robust 0W-40 synthetic motor oil formulated specifically for high-horsepower Chrysler and Nissan engines. AMSOIL Signature Series 0W-40 Synthetic Motor Oil (AZF) provides top-of-the-mark protection and performance that customers expect from Signature Series.

· Withstands the stress of high horsepower and heat to provide outstanding wear protection

· Resists viscosity loss due to mechanical shear

· Resists thermal breakdown

· Helps prevent sludge deposits and keeps engines clean

· Reduces oil consumption and emissions

· Maximizes fuel economy

Applications

Signature Series 0W-40 is recommended for Chrysler and Nissan applications calling for a 0W-40 viscosity and requiring the following performance specifications:

· API SN, SM...

· Chrysler MS-12633, MS-10725, MS-10850

· Nissan GT-R®

Applications include, but are not limited to, the following:

· Dodge Charger 6.1L/6.4L

· Dodge Challenger 6.1L/6.4L

· Dodge Viper 8.3L/8.4L

· Dodge Ram 2500/3500/4400/5500 6.4 L

· Chrysler 300 6.1L/6.4L

· Jeep SRT Grand Cherokee 6.1L/6.4L

· Nissan GT-R 3.8L

More information on AMSOIL Synthetic 0W-40 Motor Oil