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

One of the most important maintenance tasks you need to do on your car is to change the engine oil periodically. Two of the most popular motor oils are Amsoil and Mobil 1. Which one is better – Amsoil vs. Mobil 1?

Even though both engine oil brands perform quite well, Amsoil takes the lead over Mobil 1 in performance. Amsoil is better at improving gas mileage and gives better engine protection against wear and tear.

Read on to learn more about Mobil 1 vs. Amsoil, so you know what brand to get for your car to run at its best all the time.

Also, take a look at the most popular Amsoil and Mobil motor oils, on Amazon, to see their price and great reviews:

Amsoil 10W-30 Small Engine Synthetic Motor Oil:

Click here to see it on Amazon.

Mobil 1 Synthetic Motor Oil 10W-30:

Click here to see it on Amazon.

Amsoil Vs. Mobil 1 – Which One Is Better?

Amsoil vs Mobil 1

To the untrained eye, there is no difference between Amsoil and Mobil 1 engine oils. However, even though there are many similarities, you also have to learn what makes the two different from each other.

Below are some of the key differences between Amsoil and Mobil 1:

1. Fuel Economy

One of the best ways to figure out if engine oil is any good is to check out the MPG (miles per gallon) your car gets when using a particular brand. The higher the MPG, the more efficient the engine oil is at lubricating. In this aspect, Amsoil tends to be better.

The reason is that after several blind tests, it turned out that Amsoil provided around 1.5 to 3.5 more MPG compared to Mobil 1. If you are in the market for engine oil that can give you more mileage, you should get Amsoil.

2. Engine Wear

The next difference between Amsoil and Mobil 1 is how effective each one is in protecting the engine from wear and tear. Researchers pitted both engine oil brands against each other, resulting in Amsoil providing better engine protection than Mobil 1. With that said, you may want to go for Amsoil if you are looking for an oil that can help protect your engine.

3. Heat and Cold Performance

Another key factor that you need to consider when choosing a motor oil is its capability to provide adequate engine performance even in extreme climate conditions. After comparing how Mobil 1and Amsoil performed in extreme heat and cold conditions, the results were that Amsoil performed better in colder climates. However, in extreme heat conditions, Mobil 1 pulled away.

If you live in a country where the temperatures often dip below zero, use Amsoil. But if you live where the summers can get so hot that you can cook an egg on the sidewalk, you should use Mobil 1 for your car.

History of Amsoil

Lt. Col. Albert Amatuzio, the founder of Amsoil, had firsthand experience working with synthetic lubricants during his days as a squadron commander in the Air Force.

In the past, synthetic lubricants were exclusively for fighter jet engines because of their then extraordinary performance. Some of these include the ability to reduce friction between moving parts and dependability in extreme climates. It can also withstand lengthy and rigorous operations without breaking down into its base chemical components.

Amatuzio recognized that regular combustion engines could benefit from synthetic lubricants, so he formulated the first fully synthetic motor oil that met the API’s service requirements for automotive engines. It was a groundbreaking innovation in the automotive industry.

No other lubricant back then compared to it. When the first can of Amsoil 10W-40 hit the shelves in 1972, it gave birth to an entirely new industry.

History of Mobil 1

Before the company made one of the most popular synthetic engine oils globally, Mobil produced synthetic lubricants for the Air Force in the 1960s. Synthetic Mobil grease 28, which the Air Force still uses today, is the product that technically launched the synthetic oil industry.

Mobil formulated the grease to help military planes’ landing gears to function properly even during cold weather. Later, Mobil released a synthetic motor oil that was exclusively for oil rig engines that operated off Alaska’s coast, where the temperatures often dip below zero.

In 1971, Mobil created the New Concept Engine Oil Team, whose purpose is to study the emerging technologies in the lubrication industry. The team would eventually develop the first Mobil 1 fully synthetic engine oil. It had superior qualities over the conventional engine oils at the time. Mobil 1 was the first of its kind to become commercially available all over the world.

Recommended Engine Oils

If you are not familiar with these brands or used to not pay attention to them when you get your car’s engine oil changed, then here are some highly recommended products from the two:

Amsoil Full Synthetic Dominator 2-Cycle Oil

Click here to see it on Amazon.

This synthetic oil is a must-have if you are running a two-stroke, high-rev motor. Although it would be best to combine this one with high-octane fuel, you can also use it with regular pump gas, and you will still receive the same benefits:

Amsoil 10W-30 Small Engine Synthetic Motor Oil

Click here to see it on Amazon.

If you love your lawnmower, then you should not use just any lubricant for it. Amsoil formulated this engine oil specifically for small, air-cooled motors. It has higher heat resistance, which is actually a good thing because air-cooled motors run hotter than liquid-cooled:

Mobil 1 Synthetic Motor Oil 10W-30

Click here to see it on Amazon.

Mobil 1 is the type of company that stays true to its word. When they say that this fully synthetic engine oil can protect your engine for more than 10,000 miles, then you had best believe it to be true. Aside from that, this synthetic oil has superior lubricating qualities guaranteed to increase your car’s fuel efficiency by a significant amount:

Mobil 1 Synthetic Motor Oil 5W-30

Click here to see it on Amazon.

Does your car have trouble starting up during the cold winter months? This Mobil 1 fully synthetic oil might be the thing that you need. It is light enough that it will not have any circulation problems when it is cold. When it warms up, it will protect your engine from wear and tear.

Mobil 1 10W-40 Racing 4T Motorcycle Oil for Sport Bikes

Click here to see it on Amazon.

You should never use conventional oils on a high-performance bike. You need a lubricant that can keep up and protect the machine. This Mobil 1 motorcycle oil contains special additives that help protect and condition the engine parts of your precious bike.

Now that we have looked at the differences between Mobil 1 and Amsoil, let’s look at conventional oil vs synthetic oil.

Conventional Oil vs Synthetic Oil

Both Mobil 1 and Amsoil are synthetic oils. Below, let’s look at the difference between synthetic and conventional oil, and why synthetic oils are better.

What Is Conventional Oil?

Not that many car owners even know what makes conventional oil different from synthetic. It is the reason why most of them choose conventional oils only on the basis that they are cheaper than synthetic. However, synthetic happens to be the more cost-effective option. It is best to educate yourself about the differences between the two.

Conventional engine oil is the original lubricant that has been keeping motorized vehicles running smoothly (no pun intended) for over a century. This product comes from the refining of crude oil, which is a natural resource.

What Is Synthetic Oil?

While conventional engine oil comes from crude oil, synthetic lubricants are artificial products from different chemical compounds. Some synthetic oils start with conventional oil as a base, which a factory would then chemically modify. They would first refine the crude oil and then distill and purify.

After this, the makers will break down the refined oil into its base molecules. They will then further refine this to remove almost all of the remaining impurities and make the molecules more uniform.

Another thing that differentiates synthetic from conventional engine oils is that they contain various additives. The type and amounts of additives used will determine how a synthetic engine lubricant will perform. For instance, conditioners can help keep your engine’s oil seals flexible even when subjected to intense heat. It prevents leaks that are usually the cause of most engine problems.

Because synthetic engine oils have basically no impurities, they are more heat- and pressure-resistant than conventional engine oils. It is one reason why high-end carmakers like Mercedes-Benz and BMW require the use of only fully synthetic engine oils in their cars.

Amsoil and Mobil 1 oils are both synthetic oils.

What Is Synthetic Blend?

As the name suggests, synthetic blend, or semi-synthetic engine oil, is a mix of synthetic and conventional engine oils. Basically, it is a compromise between the two kinds of engine lubricants. Semi-synthetic oils can give all that additional protection for engines with heavier workloads and run at hotter temperatures.

Moreover, compared to conventional oils, semi-synthetic oils do not evaporate as easily. Less oil loss means the engine can run more efficiently, leading to increased fuel economy.

Advantages of Synthetic Over Conventional Oil

Mobil 1 vs Amsoil

So what makes synthetic oil, such as Amsoil and Mobil 1, more beneficial than conventional oil?

Here are just a few reasons:

1. It Has Higher Weight (Flows Better)

Synthetic oil is more viscous, allowing it to flow better even in cold outside temperatures. You will notice this difference when you try to start your car during freezing mornings.

2. It Lasts a Lot Longer

Synthetic oils generally have a much longer service lifespan compared to conventional lubes.

Because of the extensive refining process, synthetic oils have almost no impurities, allowing them to resist high temperatures better. In other words, their molecules do not tend to break down when exposed to extreme heat.

In general, you can use synthetic engine oils for up to 15,000 miles before you need an oil change. Compare that to the 5,000 miles that conventional oil has.

3. More Cost-Effective

Although most synthetic engine oils cost almost twice as much as conventional oils, they are still the more cost-effective option. But modern conventional oils are no longer like what they were a couple of decades ago. If you have a tight budget, no one will fault you for using conventional oil.

So again, which oil is better – Amsoil vs. Mobil 1? Amsoil is a better engine overall compared to Mobil 1. Amsoil is better for performance than Mobil 1. Amsoil is also better at improving gas mileage and gives better engine protection against wear and tear.

Frequently Asked Questions

Why Should You Not Count Conventional Oils Out Just Yet?

Yes, it is clear that synthetics have a huge lead over conventional oils, but why are they still selling regular lubricants? It is because conventional oils do have their own sets of benefits.

The biggest benefit is that new engines are not completely smooth and neat. They still contain a lot of irregularities and imperfections. Regular engine oil has non-uniform molecules, making them helpful in allowing the engine to smooth out the irregularities.

However, there is a myth that states you should not use synthetic oils on older model cars. This misconception came about during the early years of synthetic oils. At the time, synthetic oils contained a substance called an ester. It used to cause the seals in older car engines to swell up and crack. Modern synthetics no longer contain ester, making them suitable for all car makes and models.

differences between Amsoil and Mobil 1

Is It Worth Switching Over to Fully Synthetic?

If you can afford to, then you should switch to fully synthetic, but you don’t necessarily have to do it.

For instance, if you regularly change your oil at the right schedule, and your vehicle’s manufacturer is not requiring using synthetics, then continue using conventional engine oil. But if you are like most people and often miss the recommended oil change intervals, it would be better for your car if you make the switch to fully synthetic.

If you usually only make short trips, wherein the engine rarely gets up to its recommended operating temperature, conventional oil will not get hot enough to get rid of moisture and burn off contaminants resulting from fuel combustion. It will not be good for your car’s engine in the long run, so you should switch to fully synthetic engine oil.

If you live in an area where the winters can get extremely cold during the winter or get sun-blazingly hot during summers, it would be better for your engine if you decide to switch to fully synthetic. It is also a better option if you regularly use your vehicle to tow heavy loads.

Can You Mix Conventional Oil with Synthetic Oil?

Yes, it is possible to mix conventional with fully synthetic engine oil. You are not risking any danger to your engine whatsoever. In fact, there are already synthetic blend engine oils that are commercially available, and they are technically just the two types already mixed inside the container.

However, by mixing synthetic with conventional oil, you will be diminishing the synthetic’s superior benefits. You are basically downgrading the synthetic oil.

Just because you can, it does not mean you should. Unless you have no other option, you should avoid mixing synthetic and regular motor oils. For instance, you are on a cross-country trip and noticed your oil level gets too low, but the nearest small-town gas station only has regular oil.

In that scenario, it is fine if you were to mix them both. But it is also highly recommended to drain the oil pan and refill it with synthetic as soon as you can.

Conclusion – Amsoil Vs Mobil 1

When it comes to figuring out which is better between Amsoil and Mobil 1, note that both synthetic engine oil brands provide superior performance and engine protection. However, if you must choose, Amsoil is the better oil among the two. Amsoil is better than Mobil 1 in terms of improved gas mileage and engine protection.

Again, if you don’t know what type of engine oil to go for, make sure to check out this list:

  1. Amsoil 10W-30 Small Engine Synthetic Motor Oil – Click here to see it on Amazon.
  2. Amsoil Full Synthetic Dominator 2-Cycle Oil
  3. Mobil 1 Synthetic Motor Oil 10W-30
  4. Mobil 1 Synthetic Motor Oil 5W-30
  5. Mobil 1 10W-40 Racing 4T Motorcycle Oil for Sport Bikes