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Mobil 1 Vs. Extended Performance (Is There A Difference)

Engine oil is one of the most important components in a car. You need to ensure that the engine oil you choose has the best performance and can clean up your engine to work at the optimum performance. Mobil 1 has been in the engine oil game for a very long time.

The company has been a leader in the engine oil industry for decades, which is why anything they introduce has a customer base of its own.

If you’re planning on buying oil that is only manufactured by Mobil 1, you have a few options that you can choose from. The two most prominent ones that you can choose from are the Mobil 1 High Mileage and Mobil 1 Extended Performance. We’ll look at the two and tell you which is better, Mobil 1 or Extended Performance.

Mobil 1 High Mileage is an oil that has a better fuel economy. However, it can’t provide much protection to your engine. Extended Performance can give your vehicle better fuel efficiency, which means that you can drive your vehicle for a longer time.

Mobil 1 High Mileage vs. Mobil 1 Extended Performance

While both these oils are synthetic. The most prominent feature that sets the two apart is the difference in their synthetic base oil. The High Mileage oil is that of Group III, whereas the Extended Performance only uses Group IIIs. The Extended Performance oil also allows the customer to change the oil every twenty thousand miles, which is ten thousand miles greater than the High Mileage oil.

Here are some other features that set the two apart:


Both of these engine oils have the ability to lubricate your vehicle and increase its fuel efficiency. However, the amount of protection that both of these oils can provide for your vehicle is vastly different. Mobil 1 High Mileage can only protect your vehicle for the first 10K miles, after which you will have to replace the oil. On the other hand, Extended Performance can help protect for much longer. Its extended performance is given away by its name, and it can protect your vehicle for up to 20,000 miles without the need for any replacement.

Therefore Mobil 1 provides a better bang for the buck and can cover the oil change for quite a while more. If you don’t want to go through the arduous nature of consistent oil changes, you may opt for the Extended Performance oil, as it allows you to drive 10,000 more miles between each oil change. You can even save some money by not having to change the oil over and over again.

Ability to Clean

Engine oil must also come with the innate ability to clean. Both these oils have a cleaning solvent. Mobil 1 has been manufactured in a way to clean out dirt and debris that may gather in the engine over time. These oils remove all the gunk, which makes your engine much more efficient. However, the Mobil 1 Extended Performance can clean your engine more efficiently. You can have a much smoother drive overall with the Extended Performance. Thus, many people prefer Extended Performance to High Mileage.

Cold Weather Protection

The cold can seriously affect how your oil flows to the engine. If your engine oil doesn’t have good resistance to the environment, it can tamper with your engine parts since there won’t be enough lubrication to protect them against wear and tear. Cold protection allows the engine oil to heat up much more quickly, which means that it can reach the moving part with great ease and protect them.

Mobil 1 Extended Performance gives a cold-weather performance going down to -42 degrees. This fact makes your engine likely to last longer due to durability and extends the engine life. When the oil flows, it can allow smoother turns and greater protection for when the weather is cold.

Mobil 1 High Mileage tends to lack in these departments as it doesn’t have as much temperature protection. Thus, if you live in a place where it gets extremely cold, then it’s better for you to opt for Mobil 1 Extended Performance.

If your synthetic oil heats up much more quickly, then you’re safe to take your car into cold places as well. The Mobil 1 Extended Performance heats up with relative ease, which is why you should opt for it.

Oil Leakage

Oil leaks can be fairly common when you’re driving a vehicle. However, in no case should they be ignored. If you ignore oil leaks, it can turn extremely treacherous for you. If oil leaks at an extremely high temperature, you could find your car caught in a fire. Oil is extremely flammable at high temperatures, which is why you have to be careful. Mobil 1 High Mileage is better in this category as it prevents oil spillage and leaks.

The Mobil 1 High Mileage oil has some excellent ingredients for older engines. Otherwise, it can look over sea swells, detergents, and additives that help with wear or friction. This Mobil 1 higher-mileage oil is featured with conditioners of seal that increase flexibility and restore shape.

Mobil 1 High Mileage oil can prevent oil leaks, so if you’re someone who has to take a lot of long drives on your own, then you may find it safer to invest in Mobil 1 High Mileage oil.

Budget Friendliness

You can buy both of these oils at the same price. However, there are other costs that you will have to consider when making your purchase. One of the highest costs that you will incur is the time and money it will take for you to replace the oil after every 10,000 miles when you’re using the High Mileage oil.

You only have to replace the oil every 20,000 miles when using Extended Performance in a similar frame of reference, which means it’s cheaper.

Final Thoughts

Out of the two, which oil is better, Mobil 1 or Extended Performance, depends on what aspects are most important to you. If you want greater fuel efficiency or better mileage, we recommend that you opt for Mobil 1 High Mileage.

Otherwise, the Mobil 1 Extended Performance has better features and is more budget-friendly.