Amsoil Vs Mobil 1 [Which is the Better Engine Oil?]

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Motor oil is the lifeblood of your vehicle. As such, you must fill it with the best quality lubricant to keep it running smoothly. Amsoil and Mobil 1 are two of the top oil brands in the market today. But in comparing Amsoil Vs Mobil 1, which of them offers the better performance for your engine?

Amsoil is a better engine oil than Mobil 1 for improved gas mileage and better engine protection from wear and tear. On the other hand, Mobil 1 has superior heat-resisting capability suitable for environments with extreme temperatures.

Read on to learn more about Amsoil and Mobil 1 and which is the better engine oil.

Amsoil Vs Mobil 1

Amsoil vs Mobil 1

Amsoil is better than Mobil 1 in improved gas mileage and better engine protection from wear and tear. But when it comes to excellent heat-resisting capability, Mobil is better. It is ideal for environments with extreme temperatures.

Below is a comparison chart of Mobil 1 and Amsoil, highlighting each of their features:

AmsoilMobil 1
Which is better in terms of:
– Engine protection from wear and tearX
– Heat-resisting capabilityX
– Cost- and fuel-efficiencyX
– Performance in cold temperaturesX
– Fighting viscosity breakdownX
Amsoil vs Mobil 1 Comparison Chart

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More About Amsoil

One of the Leading Manufacturers of Fuel, Filters, Additives, and Synthetic Lubricants

Amsoil is one of the leading manufacturers of fuel, filters, additives, and synthetic lubricants in the United States. Based in Superior, Wisconsin, it was founded in the 1970s by US Air Force commander Lt. Col. Albert Amatuzio, who sold motor oil starting in 1968.

Initially Used Exclusively for Fighter Jet Engines

Synthetic lubricants were initially used exclusively for fighter jet engines due to their then-unique capabilities. These include reducing friction between moving parts and their reliability under extreme climates.

It also includes resiliency during long and rigorous operations without breaking down into their base chemical components.

Amatuzio Formulated the First Fully-synthetic Engine Oil

Realizing that synthetic lubricants can greatly benefit regular combustion engines, Amatuzio formulated the first fully-synthetic engine oil. It then met the service requirements mandated by the American Petroleum Institute (API) for automotive engines.

Introduced Amsoil 10W-40 in 1972

The company broke new ground when it introduced Amsoil 10W-40 in 1972, giving rise to the entire synthetic oil industry.

Amsoil Lubricants Outperforms Its Peers

Even with the many brands of lubricant that have flooded the market, Amsoil consistently outperforms its peers. It has become the first choice among most racers and heavy-duty vehicle owners.

Shear-resistant Based Natural Oils Blended with the Highest Quality Synthetics

Amsoil lubricants are shear-resistant based natural oils blended with the highest quality synthetics. Shear-stable viscous additives improve the oil’s viscosity, enabling it to endure shearing forces and extreme heat conditions. 

Amsoil Products

Let us now review some of the most popular and best-performing Amsoil oils and take note of the pros and cons of each. These include the following:

  1. Severe Gear SAE 75W140
  2. Full Synthetic Dominator 2-Cycle Oil
  3. 5W-30 Signature Series Synthetic Motor Oil

1. Amsoil SVGPK 100% Synthetic Extreme Pressure (EP) SEVERE GEAR Lube

Click here to see it on Amazon.

The Amsoil SVGPK 100% Synthetic Extreme Pressure (EP) Severe Gear Lube stands out as a premium lubricant designed to deliver exceptional performance in demanding applications.

Formulated with top-grade synthetic base oils, this gear lube is specifically engineered to provide superior protection for gears and bearings under extreme conditions.

The “Severe Gear” designation indicates its ability to handle the rigorous demands of heavy-duty applications where conventional lubricants may fall short.

One of the key features of the Amsoil SVGPK is its extreme pressure (EP) capability. This means it excels at maintaining film strength and preventing metal-to-metal contact, even under high-load conditions.

The EP additives in this gear lube contribute to reduced friction, wear, and heat generation, promoting longer equipment life and optimal performance.

This is particularly crucial in applications where gears are subjected to heavy loads and high temperatures, such as in off-road vehicles, trucks, and industrial machinery.

The 100% synthetic formulation of the Amsoil SVGPK ensures consistent performance across a wide temperature range. Synthetic oils are known for their thermal stability and resistance to viscosity breakdown, providing reliable lubrication even in extreme heat or cold.

This characteristic is especially beneficial in gear applications where temperature variations are common, ensuring that the lubricant maintains its protective properties under diverse operating conditions.

Additionally, the Amsoil SVGPK is designed to resist foaming, which can be a common issue in high-turbulence environments.

Foaming can lead to diminished lubrication efficiency and increased wear. By resisting foaming, this gear lube helps maintain a stable lubricating film, contributing to smoother gear operation and enhanced component protection.

The Amsoil SVGPK is suitable for various applications, including differentials, manual transmissions, and transfer cases. Its versatility makes it a valuable choice for automotive, industrial, and off-road equipment. Moreover, its long-lasting performance allows for extended drain intervals, reducing maintenance frequency and associated costs.

In summary, the Amsoil SVGPK 100% Synthetic Extreme Pressure Severe Gear Lube is a top-tier lubricant that excels in providing exceptional protection under severe operating conditions.

Its synthetic formulation, extreme pressure additives, resistance to foaming, and versatility make it a reliable choice for gear applications where durability and performance are paramount.

2. Amsoil Full Synthetic Dominator 2-Cycle Oil

Provides Enhanced Performance Under Harsh Conditions

Among the rigors that an engine has to endure are high speeds. Amsoil Full Synthetic Dominator 2-Cycle Oil does not only protect your engine from damages. But it also provides enhanced performance under such harsh conditions.

Offers an Outstanding Amount of Film Strength

For starters, Amsoil Full Synthetic Dominator 2-Cycle Oil offers an outstanding amount of film strength, as well as excellent lubricity.

Most of the 2-stroke engines used for racing operate under heavy loads and have a relatively higher compression ratio and higher rpm. This lubricant protects the motor from any damages under such pressure.

Ensures That the Pistons Are Clean

Aside from that, Amsoil Full Synthetic Dominator 2-Cycle Oil also ensures that the pistons are clean, and the oil flows through the engine smoothly. It eliminates any deposits between the pistons, the rings, and the combustion chamber. This then guarantees that your engine stays fresh and clean.

Oil Base Is Blended with An Anti-friction Formula

Amsoil Full Synthetic Dominator 2-Cycle Oil’s oil base is blended with an anti-friction formula. It keeps the friction inside the engine at a bare minimum.

Ensures That the Vehicle Can Perform at Maximum Capacity

Also, it ensures that your vehicle will perform at maximum capacity. At the same time, it also protects both coated and non-coated racing pistons, enabling you to drive with full power and performance.


  • Provides excellent lubricity
  • Packed with an anti-friction formula
  • Superior film strength
  • Cleans pistons and other parts of the engine
  • Protects both coated and non-coated pistons


  • Average protection against heat
  • Lower capacity bottles are a little expensive

3. AMSOIL Full Synthetic Severe Gear Lube 75W-90 1 Quart

Click here to see it on Amazon.

AMSOIL Full Synthetic Severe Gear Lube 75W-90 in the 1-quart size represents a high-performance lubricant designed to meet the demands of severe gear applications.

This full synthetic gear lube is engineered with precision to offer outstanding protection and performance, particularly in applications where extreme pressures, heavy loads, and temperature variations are common.

The 75W-90 viscosity grade indicates its suitability for both low and high-temperature environments, making it versatile for various operating conditions.

This gear lube is designed to provide excellent flow characteristics in cold temperatures while maintaining stability and protection under high temperatures, ensuring optimal performance across a wide range of applications.

The full synthetic formulation of AMSOIL Severe Gear Lube incorporates high-quality synthetic base oils and advanced additives. Synthetic oils offer superior thermal stability, reducing the risk of viscosity breakdown even in extreme heat.

This characteristic is crucial for gear lubrication, where temperature fluctuations are common and can impact the lubricant’s effectiveness. The advanced additives contribute to enhanced extreme pressure protection, preventing wear and ensuring smooth gear operation.

AMSOIL Severe Gear Lube is specifically designed for severe-duty applications such as differentials, manual transmissions, and gear sets in a variety of vehicles, including trucks, off-road vehicles, and performance cars.

Its robust formulation is intended to extend equipment life, reduce maintenance costs, and optimize overall gear performance.

This 1-quart size is convenient for users who require a specific quantity for their gear applications. The compact packaging makes it easy to store and handle, ensuring that users can access the right amount of lubricant for their needs without waste.

In conclusion, AMSOIL Full Synthetic Severe Gear Lube 75W-90 in the 1-quart size is a top-quality lubricant designed for demanding gear applications.

Its full synthetic composition, 75W-90 viscosity grade, and advanced additives make it a reliable choice for those seeking superior gear protection, thermal stability, and performance across a range of challenging operating conditions.

More About Mobil 1

differences between Amsoil and Mobil 1

Manufactured Synthetic Lubricants for the United States Air Force in the 1960s

Before becoming one of the top producers of synthetic engine oil globally, Mobil manufactured synthetic lubricants for the United States Air Force in the 1960s.

Formulated Mobilgrease 28 to Help the Landing Gears of Military Planes Properly Function

Mobilgrease 28, which is still being used by the Air Force today, launched the company and the synthetic oil industry.

The grease was formulated to help the landing gears of military planes properly function even in cold weather. Eventually, Mobil would release a synthetic motor oil made exclusively for oil rig engines operating off the coast of Alaska, where temperatures would often drop below zero.

Founded the New Concept Engine Oil Team

Mobil founded the New Concept Engine Oil Team in 1971 to study emerging technologies in the lubrication industry.

Eventually, they would develop the first fully-synthetic engine oil, Mobil 1. Possessing qualities superior to conventional oils, Mobil 1 was the first fully-synthetic lubricant commercially available worldwide.

Mobil 1 Features

Utilize the Right Combination of Conventional Engine Oils and Synthetic Blends

Mobil 1 is one of the few motor oil manufacturers that utilize the right combination of conventional engine oils and synthetic blends. Their extensive line of lubricants not only enhances overall engine performance.

Popular Choice Among Heavy-duty Vehicle Owners and Racers

But it also provides all-around protection to the vital engine components in extreme load. This makes Mobil 1 oils a popular choice among heavy-duty vehicle owners and racers.

Aside from protecting the engine components, Mobil 1 oils also ensure that engine performance does not deteriorate under intense strain.

Guarantees a Smooth Flow Within the Engine

Also, Mobil 1 guarantees a smooth flow within the engine. It produces a bare minimum quantity of deposits in the motor, enhancing overall performance.

At the same time, it extends the engine’s overall lifespan, making the drivers experience a redefined driving experience.

Mobil 1 Products

Now, let’s look at some of the best Mobil 1 motor oils in the market and review their advantages and disadvantages.

These include the following:

  1. Mobil 1 96936 20W-50 V-Twin Synthetic Motorcycle Motor Oil
  2. Mobil 1 (120760) 0W-40 Motor Oil
  3. Mercedes-Benz Q-1-09-0015 – Mobil 1

1. Mobil 1 96936 20W-50 V-Twin Synthetic Motorcycle Motor Oil

Can Substantially Increase the Engine’s Lifespan

Out of the many motor oil options available, Mobil 1 96936 20W-50 V-Twin Synthetic Motorcycle Motor Oil is one of the few that can substantially increase the lifespan of an engine.

Reduces Overall Frictional Losses

Its unique formula has enhanced frictional capabilities, which reduce overall frictional losses. It ensures that the engine provides consistent power for the entire duration of the run time.

Increases Vehicle’s Fuel Economy

The optimized frictional properties that come with Mobil 1 96936 20W-50 V-Twin Synthetic Motorcycle Motor Oil likewise balance the engine’s performance to optimum levels. This substantially increases your vehicle’s fuel economy and saves you a few bucks.

Mobil 1 96936 20W-50 V-Twin Synthetic Motorcycle Motor Oil’s unique formulation provides superior protection against typical engine wear. It does not only improve overall performance but also extends the overall lifespan of your engine.

Has an Outstanding Thermal Stability

It also has outstanding thermal stability, creating a fluid film around the engine’s vital parts. This will protect them from extreme temperatures. Also, it makes sure that the amount of deposit forming within the engine is kept to a minimum.


  • Extends the engine’s overall lifespan
  • Provides engine protection from occasional wear
  • Creates a fluid film that protects against severe temperature
  • Substantially reduces friction losses
  • Enhances fuel economy and engine performance


  • Doesn’t work efficiently inside the transmission
  • Cold temperature performance is lacking

2. Mobil 1 (120760) 0W-40 Motor Oil

Meets OEM and Industry Standards

When an engine oil gets Original Equipment Manufacturer (OEM) approval, it signifies its quality and reliability. Mobil 1 (120760) 0W-40 Motor Oil meets OEM and industry standards and exceeds them.

This is why most vehicle manufacturers have selected it as a factory fill. It only goes to show how reliable this lubricant is.

Comes with Efficient Cleaning Properties

Mobil 1 (120760) 0W-40 Motor Oil’s advanced formulation comes with efficient cleaning properties. It is capable of cleaning old oil deposits left in the engine. Aside from its cleaning ability, it also guarantees that the oil inside the engine will flow steadily.

This substantially enhances the performance of your engine to peak levels. It then provides you with a redefined driving experience.

And finally, harsh winters need not be a concern for you and your vehicle anymore. Mobil 1 (120760) 0W-40 Motor Oil can protect the engine’s crucial components at extremely low temperatures.


  • Exceeds OEM standards and industrial requirements
  • Overall performance is enhanced
  • Cleans old oil deposits efficiently
  • Ensures smoother flow of oil
  • Protects the engine at low temperatures


  • Container doesn’t stay sealed after the sticker has been removed
  • Does not have LL-01 approval

3. Mercedes-Benz Q-1-09-0015 – Mobil 1

Creates a Fluid Film Around the Engine Components

When it comes to resisting extreme temperatures during combustion, Mercedes-Benz Q-1-09-0015 – Mobil 1 excels where most engine oils fall short. This Mercedes Benz-approved lubricant creates a fluid film around the engine components.

These are essential to the efficient combustion process. It protects the motor against extremely high and low temperatures.

Enhanced Formula That Improves the Oil’s Overall Frictional Properties

Mercedes-Benz Q-1-09-0015 – Mobil 1 also has an enhanced formula that improves the oil’s overall frictional properties—increasing fuel economy substantially.

One of the Most Cost-efficient Lubricants Available in the Market

This makes it one of the most cost-efficient lubricants available in the market. Aside from that, it also protects the engine from wear and enhances its overall lifespan.

Mercedes-Benz Q-1-09-0015 – Mobil 1’s efficient cleaning capability reduces the total amount of deposits in the engine.

This ensures a smooth flow of oil and enhances performance significantly. Also, it decreases the start-up time by sufficiently lubricating the crucial parts of the engine. This further improves the overall performance.


  • Protects engine components from extreme temperatures
  • Creates a fluid film that protects the engine during combustion
  • Packed with improved frictional properties
  • Fuel economy is increased
  • Engine wear is reduced, lifespan is extended


  • Smaller bottles are relatively expensive
  • Container tends to leak

Amsoil Vs Mobil 1 – Which Is the Better Engine Oil?

Amsoil vs Mobil 1

To the casual motorist, one engine oil is as good as another. As long as it does the job, right? But the point is which oil does the job best. Although Amsoil and Mobil 1 oils may share similarities, they also differ in certain aspects. And to make a decision, it is important to make a comparison of both.

Let’s take into consideration the following factors:

  1. Fuel Economy
  2. Engine Wear and Tear
  3. Heat and Cold Performance

1. Fuel Economy

One of the best ways to determine the efficiency of your engine oil is by checking your vehicle’s MPG (miles per gallon) when using a specific brand. MPG is the unit of fuel economy. The higher it is, the more efficient the lubricant is.

After several blind tests between the two motor oil brands, Amsoil yielded approximately 1.5 to 3.5 more MPG than Mobil 1. If you are looking for a cost- and fuel-efficient lubricant that will give you better mileage, then Amsoil is the best option for you.

2. Engine Wear and Tear

Next, we shall compare how effectively these lubricants protect the engine against wear and tear. Pitting the two engine oils against each other, researchers have found that Amsoil’s engine protection is superior to Mobil 1. Amsoil would be the better choice to protect your engine.

3. Heat and Cold Performance

When choosing the best engine oil for your vehicle, an essential factor to consider is how well they perform under high and low temperatures. I compared how each lubricant performed under conditions of extreme heat and cold.

It turned out that Amsoil fared better in colder temperatures. Mobil 1, on the other hand, thrived better in severely hot temperatures.

Do you reside in a place where the temperature usually drops to below zero levels? You will need a motor oil that won’t freeze on you if your answer is yes.

So, for colder climates, Amsoil is the better engine oil. But if you live in warmer climates, Mobil 1 is the ideal oil to use when you’re out driving under the hot summer sun:

AmsoilMobil 1
Which is better in terms of:
– Engine protection from wear and tearX
– Heat-resisting capabilityX
– Cost- and fuel-efficiencyX
– Performance in cold temperaturesX
– Fighting viscosity breakdownX
Amsoil vs Mobil 1 Comparison Chart

And the Winner Is…

Amsoil excelled in 2 out of 3 tests easily outperforms Mobil 1 in fuel efficiency and engine protection. Also, Amsoil’s naturally shear-resistant oils, coupled with shear-stable top viscosity improvers, enable it to fight viscosity breakdown 46% better than Mobil 1.

This is not to say that Mobil 1 is a poor brand. It does perform under extreme heat better than Amsoil. This means that it is about as effective as any good motor oil needs to be. But as good as Mobil 1 is, Amsoil is simply better.

Frequently Asked Questions – Is Mobil 1 Better than Amsoil?

Here are several frequently asked questions that may address your concerns about Mobil 1 and Amsoil:

Is Mobil 1 Better than Amsoil?

Amsoil is capable of holding out against extreme heat and shearing forces. It outperforms its rivals and exceeds industry standards. It can combat viscosity breakdown better than Mobil 1.

Is Mobil 1 the Best?

Mobil 1 is recommended if you look for the highest quality synthetic oil for engines that require maximum protection. The most recommended one is the Mobil 1 Advanced Full Synthetic Motor Oil.

What Is the Difference Between Mobil and Mobil 1?

Mobil and Mobil 1 both offer full synthetic protection. But the latter is considered a leading synthetic motor oil brand worldwide. It surpasses the popularity of Mobil Super Synthetic motor oil.

Conclusion – Mobil 1 Vs Amsoil

Amsoil is better than Mobil 1 in improved gas mileage and better engine protection from wear and tear. However, when it comes to excellent heat-resisting capability, Mobil is better. It is ideal for environments with extreme temperatures.

Based on tests conducted by automotive experts, Amsoil stands victorious as the superior engine oil brand. It bested Mobil 1 in 2 out of 3 categories.

With that said, though, Mobil 1 does have an advantage over Amsoil when it comes to heat-resistant capabilities. Ultimately, it comes down to the consumer to decide which lubricant brand is the most suitable for their driving needs.

Hopefully, the given data, plus the specs of the various motor oils from both brands that we have presented here, will be helpful to you in making the right choice.

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