Amsoil vs. Liqui Moly – Which oil is better?

Car owners and enthusiasts may be familiar with a few different types of engine oils. Amsoil is one of these oils which has been around for a long time. It is well-known for producing premium synthetic motor oils.

Another oil that has earned a name for itself in the automobile sector is Liqui Moly. How do these two oils match up? If you’re curious, you should read this article.

Amsoil vs. Liqui Moly: Which is better?

When deciding which oil will work best for them, car owners must consider the qualities of each lubricant. Because both oils have upsides and downsides, it cannot be easy to choose between Liqui Moly and Amsoil.

We’ll examine the many features of both oils to give you the knowledge you need to make an informed decision.

Oil Viscosity

Amsoil and liqui moly operate similarly in every situation. Therefore, both high and low temperatures are part of these circumstances. You can use both of them in a variety of automobile applications. When using the appropriate oil for their vehicle, users of either product won’t encounter any problems.

Oil Grades

Depending on the type of engine you have, you can choose between using synthetic or conventional oil. Newer vehicles and those driven frequently at high speeds use synthetic oil. Older vehicles and those used occasionally or for short distances use conventional oil.

While some of Liqui Moly’s oils are not 100% synthetic, most are. They are conventional oils. On the other hand, Amsoil is 100% synthetic in all of its products.


Liqui Moly and Amsoil are both synthetic lubricants. It indicates that their sources are not organic materials. Amsoil contains premium synthetic base oils that offer improved engine protection. It is one of the main differences between it and Liqui Moly. Liqui Moly, in contrast, only incorporates subpar synthetic base oils into its formulations. As a result, Liqui Moly is less effective than Amsoil at preventing engine damage.

Oil Standards

Amsoil complies with all necessary specifications. These specifications fulfill the fundamental needs of oil standards. For example, Liqui Moly typically abides by the motor oil specification (CJ-4) because it is the closest to its products’ basic stock.

Temperature Range

The wide temperature range of Amsoil and Liqui Moly makes them compatible with most automobile engines. For example, Liqui Moly’s temperature range is -17.78 to 110 degrees Celsius, compared to Amsoil’s -40 to 371.111 degrees. Therefore, you need not worry about the temperature in your automobile being too high or low when using either product.

Oil Economy

Amsoil and Liqui Moly both provide outstanding oil economies. Amsoil Synthetic 5W-30 combines the advantages of synthetic oil with improved fuel efficiency. It enables users to purchase high-quality engine oil for significant savings. 

Multi-viscosity technology offers it. Amsoil’s V-Max technology provides superior lubrication and protection against engine wear.

Oil Blend

Amsoil and Liqui Moly are excellent choices. They are excellent choices, especially if you’re searching for a premium oil combination. This combination offers exceptional performance and offers protection. When it comes to maximizing performance and reducing damage, both oils are renowned for their capacity. Their capacity safeguards engine surfaces and keeps them clean. To choose which is ideal for your needs, compare the two brands since they each offer a different blend.

Amsoil vs. Liqui Moly: Oil Test Results

When considering changing to synthetic oil or replacing a fluid filter, consumers should be aware of the findings of oil tests. These results indicate the test oil’s quality.

Four-ball wear test (ASTM D 4172 Mod)

This test evaluates a lubricant’s ability to prevent wear. Place a revolving ball in sliding contact with three metal balls that you fasten together. The test lubricant covers the metal balls. The wear scar that results from this interaction is often measured and recorded. This lubricant offers higher wear protection. Amsoil Motor Oil had less wear than Liqui Moly.

Total base number (ASTM D 2896)

This test uses a series of chemical processes to determine the basic additives in motor oil. The AMSOIL Synthetic Motor Oil has the highest TBN of the two oils.

Cold cranking viscosity (ASTM D 5293)

Engine cranking at low temperatures has a direct relationship. This relationship is with the viscosity of lubricants in these circumstances. With low temperatures and high rates of shear, the Cold Crank Simulator Test measures the viscosity of the lubricant. The test was conducted by lab staff at a temperature of -30°C. Amsoil’s temperature reading was the least of the two oils.

NOACK volatility test (ASTM D 5800)

This test calculates the amount of lubricant that evaporates. These lubricants evaporate during high-temperature operations. In addition to contributing to poor circulation, motor oils become thicker and heavier the more they evaporate. Compared to Liqui Moly, AMSOIL Synthetic Motor Oil is more resistant to high temperatures. As a result, AMSOIL Synthetic Motor Oil keeps fuel efficiency at its best while lowering oil use and pollution.

Amsoil vs. Liqui Moly: Applications

Various industries use Amsoil and Liqui Moly oils extensively. They possess unique qualities and traits that may make them better suited to particular businesses than others. Below, we’ll contrast the qualities of the two oils and go through how you might use them in various fields;

  • You can use Amsoil as an engine lubricant for tractors and combines, among other farm machinery. Additionally, you can use it as an industrial lubricant. You can also use the lubricant for conveyors, hydraulic systems, engines, gearboxes, and other machinery.
  • You can use Amsoil as a differential fluid, hydraulic oil, grease lubrication, or gear lubricant. You can also use it as a rear axle lubricant or transmission fluid. It can also be utilized as a hydraulic fluid in cars without wet brakes. With this substance, it is also possible to lubricate chains and belts.
  • The aviation sector uses a lot of Liqui Moly. Due to its special composition, you can use it in gas turbines and piston engines for airplanes. Helicopters and stationary gas turbine engines also use it.
  • All gasoline engines and transmissions can utilize Liqui Moly as a lubricating lubricant. You can also use it as brake fluid or automatic transmission fluid. It can also be used as a hydraulic fluid in vehicles with wet brakes, such as cars and trucks.


Is Liqui Moly 100% synthetic?

Most of Liqui Moly’s products are synthetic, albeit not everyone is. Liqui Moly produces a variety of entirely synthetic oils. However, some of their products, such as cleaning goods and chemicals, are not synthetic.

How long does Liqui Moly last?

Liqui Moly has a minimum effective range of 50,000 kilometers.

Is Amsoil oil API certified?

Due to the significant restrictions, most Amsoil motor oils are not certified under the API. This restriction is on the use of phosphorus.

Does Amsoil have Dexos?

Yes, Amsoil has Dexos. They have upgraded their products to meet and surpass Dexos specifications.


Except when specifically mentioned for your vehicle’s use, you can use either oil in your vehicle. If so, you should follow the manufacturer’s instructions in the owner’s manual and use the recommended oil.

To guarantee that your car operates at an optimal level, you must do your research. Then you can determine whether the oil is appropriate for your vehicle type from your research.


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