Six Best High-Mileage Motor Oils in 2022

You own a high-mileage motor vehicle. You are tired of oil sludge buildup and would like to see your vehicle last many years.

The answer is a high-mileage engine oil. You should choose high mileage oils if you own a motor with a lot of mileage. These oils will keep your engine lubricated for longer periods of time and help it run smoothly. 

With high mileage engine oils, you can increase the engine’s lifespan and enhance its performance. In this article, let’s look into some of the best motor oils for high mileage engines. 

Be sure to select the appropriate viscosity, specification and type for each car engine.

You want only the best. Check out our top 3 picks for the best!

Disclaimer – This article may contain affiliate links, this means that at no cost to you, we may receive a small commission for qualifying purchases.

The Best Overall

Mobil 1 High Mileage

Mobil 1 High Mileage Full Synthetic Motor Oil

  • Protect against leaks and deposits
  • Gives you the most effective lubrication available and keeps gaps from forming
  • Mobil's best wear protection

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Premium Choice

Royal Purple 11748 HMX

Royal Purple 11748 Hmx

  • Reduces engine wear and performance
  • Additives for anti-wear that are enriched with zinc and phosphorous. 
  • Engine protection 

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Budget Choice

Castrol 03111C GTX Maximum Mileage

Castrol 03111C Gtx High Mileage

  • It is extremely cost-effective
  • This prevents the buildup of sludge and deposits in the engine 
  • Use advanced additives to prevent engine wear

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Índice de Contenido
  1. Here are 6 of the Best Motor Oils For High Mileage Engines In 2022
    1. 1. Mobil 1 Full Synthetic Mobil Oil - High Mileage
    2. 2. Royal Purple 11748 HMX 5W-30 Mileage Synthetic Oil
    3. 3. Castrol 03111C GTX Synthetic Blend 10W-40 Motor Oil 
    4. 4. Pennzoil 10W-40 high mileage motor oil
    5. 5. Valvoline High Mileage Motor Oil - MaxLife Technology
    6. 6. Castrol Edge Premium Full Synthetic Motor oil with High Mileage, 10W-30 Castrol Edge
  2. Best Motor Oil for High Mileage Engines – Buyer’s Guide
    1. Different types of motor oil
    2. Motor Age 
    3. Weather Conditions
    4. Reccommended Viscosity 
    5. Niveau of protection
    6. Lubrication 
    7. Additives
  3. Summarising

Here are 6 of the Best Motor Oils For High Mileage Engines In 2022

There are many benefits to using high-quality oil with high mileage for your high-mileage engines. Since you’re aware of them, let us look at the best oils you can use to better your engine’s performance. So, without further ado, let’s get to the reviews!

1. Mobil 1 Full Synthetic Mobil Oil - High Mileage

Mobil 1 High Mileage Full Synthetic Motor Oil

Many people are familiar with Mobil 1, one of the biggest oil producers.

Moil 1 Full Synthetic Motor Oil High Mileage is ideal for beating its competition. This oil offers the most wear protection of all Mobil products. This oil is also extremely lubricating and prevents gap formation within components. 

This oil can be used to clean out sludge from your engine. The oil is able to remove all components normally left behind by other oils. As a result, it increases the life and performance of your vehicle’s engine. 

Another excellent thing about this motor oil is the seal conditioners’ strength. This high-mileage oil will ensure that your engine is in the best possible condition.

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There are pros

  • Protect against leaks and deposits
  • Gives you the most effective lubrication available and keeps gaps from forming
  • Mobil's best wear protection
  • Complete resistance to extreme temperatures and pressures 
  • Even at very low temperatures, it will still work well. 
  • Allows engines run efficiently

2. Royal Purple 11748 HMX 5W-30 Mileage Synthetic Oil

Royal Purple 11748 Hmx Sae 5W-30 Mileage Synthetic Motor Oil

Royal Purple Synthetic Motor Oil is the only high-mileage engine oil you'll ever need. This motor oil is unmatched in its performance and reliability. 

This oil is undoubtedly the most popular motor oil for high-mileage engines on the market. It is safe, long-lasting, resistant to wear, and provides a functionality boost for any engine with high mileage. 

The Royal Purple motor oil is a combination of scientists and engineers to deliver exceptional performance. Royal Purple motor oils are able to travel up to 75,000 miles. 

The oil has a high anti-oxidant profile so you don't need to be concerned about the engine getting clogged by oil sludge. The motor oil also has drain intervals that are extended and anti-wear. 

Due to the formula’s anti-corrosion properties, the older your engine, the better performance you will feel with the oil. It is excellent for increasing an engine’s lifespan. 

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There are pros

  • Improves engine efficiency
  • Protection of both new and old engines against corrosion and wear. 
  • To achieve maximum engine performance, reduce engine deposits 
  • This engine is great for engines that have a maximum of 75,000 miles 
  • Excellent low-temperature resistance 


  • It is quite expensive for some people.

RELATED: What does SAE stand for in motor oil?

3. Castrol 03111C GTX Synthetic Blend 10W-40 Motor Oil 

Castrol 03111C Gtx High Mileage 10W-40 Synthetic Blend Motor Oil

People associate high-mileage engines with expensive maintenance. However, with the right information and products, that’s not always the case. This Castrol High Mileage Synthetic Blend Motor Oil will give you the highest performance and lowest price. 

Castrol makes some of the best motor oils in the world. Castrol is known for its high-performance and reliability. 

It is a high-mileage oil that's not to be missed. You get all you need to improve your engine's performance.  

This motor oil has a high mileage rating and is ideal for engines over 75,000 miles. The oil has a solid dispensary system to prevent sludge formation. 

These seal conditioners are used to reduce engine oil leakage.  This oil meets the API and ACEA standards. It offers burn-off protection that is equal or better than premium oils. 

This oil has excellent corrosion resistance and is ideal for old engines as well. Bosch engines can use it to get the most out of this oil. 

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There are pros

  • It meets API and ACEA standards to prevent oil burning off
  • Include viscosity index boosters
  • Hight quality dispersant
  • It also contains titanium friction modifiers. 
  • You get supreme sludge and oil leakage protection.


  • Some bottles were reported as leaking at delivery
  • It is not as performant as the royal purple or mobil 1.

RELATED: 12 common myths about engine oil

4. Pennzoil 10W-40 high mileage motor oil

Pennzoil 10W-40 High Mileage Motor Oil

If you’re looking for a quality yet affordable product, the Pennzoil 10W-40 High Mileage Motor Oil is the right option for you. Through its many innovative, unique components, this oil can help restore the agility to your engine. 

This oil has been specially designed to restore old engines with high mileage. The oil is designed to bring back performance by reducing wear and cracking, as well as preventing any leakage. 

This high mileage oil has a great feature: it lasts for a long time. This feature allows the engine’s internals to be completely clean. Pennzoil High Mileage Motor Oil will be a great choice for vehicles that have more than 75,000 mi. 

The engine strength is increased, so it works great for an old car. It not only repairs any damage caused by the miles, but also makes it ready for new performance. 

This oil is also LSPI protected, which will save most modern turbocharged engine. This motor oil is a must-have to increase the engine’s performance, safety, and longevity. 

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There are pros

  • Protect your old engine with this perfect combination
  • Superior wear protection and rejuvenation 
  • Great protection with LSPI 
  • This product comes with a viscosity of 10w30.
  • Seal protection 


  • The oil doesn’t have AMP SN Plus certification.

5. Valvoline High Mileage Motor Oil - MaxLife Technology

Valvoline High Mileage Motor Oil With Maxlife Technology

There’s a reason why we’ve chosen the Valvoline High Mileage Motor Oil in our list. This motor oil performs as well as any nutrition supplements a senior citizen may take. 

It helps increase the engine’s lifespan, rejuvenate worn-down components, and lubricate the machine correctly. This formula uses all of the latest innovations and technology to guarantee the most efficient performance. 

These seal conditioners prevent oil leakage. Its high anti-oxidant value also helps prevent sludge production from increasing the engine’s performance. 

The engine allows extra wear protection and uses the Maxlife Technology to increase the engine’s durability. 

For engines that have travelled at least 75,000 miles, it is the perfect choice. It offers the most protection thanks to its unique friction modifiers and cleaning agents. This oil can be used in combination with Valvoline products to achieve amazing results. 

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There are pros

  • Additional wear protection is available for engines with high performance.
  • Anti-oxidants rich in antioxidants prevent engine blockages and sludge formation.
  • This product comes with rust inhibitors.
  • This synthetic mixture allows for a motor that can cover at most 75,000 miles.
  • MaxLife Technology improves engine durability.


  • This container may not be ideal.

6. Castrol Edge Premium Full Synthetic Motor oil with High Mileage, 10W-30 Castrol Edge

Castrol Edge High Mileage 10W-30 Advanced Full Synthetic Motor Oil

Spotting a second product on our list from Castrol shouldn’t come as a surprise due to its reputation. This isn't a cheap product. Instead, it's an excellent mid-range product. 

This Castrol Edge High Mileage Ful Synthetic Motor Oil is used to prevent situations when your vehicle’s engine gets too week to operate. This oil will ensure that your engine is in top condition for as much time as possible. 

Your engine will be protected by seal conditioners and supreme antioxidants. This product does not produce any fuel-stealing burns, leaks or deposits. Its ability to improve the fuel economy of your engine is what makes this product so special.  

These oils are used to increase an old engine’s lifespan since it employs extra fluid titanium technology. It's ideal for increasing engine strength and reducing the possibility of film breaking down. 

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There are pros

  • Maximizes fuel efficiency 
  • Fluid titanium technology increases film strength and engine performance.
  • Protection against excessively high temperatures
  • Protects against adverse wear and tear, as well as buildup. 
  • Ideal for short-term as well long-term use. 


  • You might see it fall apart at low temperatures. 

Best Motor Oil for High Mileage Engines – Buyer’s Guide

Each engine is unique and each has different oil needs. High mileage engines require different oil products. To ensure engine longevity and performance, it is important to choose the best oil. 

We have come up with a buyer’s guide to help you make the best purchasing decision. Here are some important things to consider before you make an investment in high-mileage motor oil. 

Different types of motor oil

Your engine's performance will be affected by what type of motor oil is used. For older engines, all high-mileage oils have been specifically designed. Each oil is different in how it protects and lubricates the engine.  There are three kinds of motor oils.

Conventional Oil

The organic components in conventional and mineral oils are extracted directly from the ground. There are very few additives in the finished product. They’re generally cheaper but have a low tolerance to high temperatures and can burn off quickly.

Synthetic Oil

Synthetic oils are man-made oils that contain many chemicals and other additives. These oils are versatile and highly-efficient. They can be used with any pressure or temperature condition, so even though they're expensive they're worth it. 

Semi-Synthetic oils

These oils can be a mixture of traditional or synthetic oil. These oils generally share some common advantages. These may be more resistant to heat and contain fewer chemicals. You can choose from a variety of viscosity ratings to offer more options and choice.

Motor Age 

Every high mileage oil can have a different motor age capacity. It is important to check how many miles your vehicle has accumulated before you choose the right oil. High mileage motor oils can work for engines less than 75,000 mi, but some are better suited for engines that have been around for longer periods. 

You can expect to see more mileage on your engine the older it gets. When choosing oil for your engine, make sure it is able to repair and maintain any cracks or leaks that may have occurred over its life. 

Weather Conditions

You can't imagine how your location affects your car. Temperature and pressure outside will affect the ignition process. Weather conditions will have an impact on the condition of the engine. 

Motor oils are best for low-temperature areas. 

With high-temperature, you should look for extremely high-temperature sustainability in the oil because the engine doesn’t only tackle internal but also external heat. 

Reccommended Viscosity 

When choosing motor oil for high-mileage applications, viscosity is a critical factor. The fluid's flow through the cylinders is affected by density. It also influences the heat generated in gear sets and cylinders. 

Viscosity also affects the engine’s overall fuel efficiency. Viscosity can also affect engine smoothness in different temperature ranges. 

It is a good idea to verify the engine's viscosity recommendations before you buy motor oil. Every engine manufacturer is familiar with the specifications of its product. The following recommendations will allow you to get the best return on your investment. 

Niveau of protection

While dealing with high mileage engines, it is crucial to check the protection level provided by the oil you’re going to use. Although some oils are only good at lubrication and others provide protection against wear, they can be very effective. You need more than just oil to lubricate high-mileage engines. 

You can get engine oils that are high quality and prevent sludge production, corrosion prevention, and leakage prevention. Many oils are also capable of repairing cracks and other damages within the engine. It is best to invest in such motor oils since they are excellent for improving the engine’s longevity.


As the oil’s lubrication capacity increases, so do the engine’s performance. High mileage oils are able to protect and repair damaged engines. It is the best way to increase an engine’s lifespan. 

You can stop gaps within components from happening by providing adequate lubrication. This improves engine functionality and smoothness. 


The addition of additives can improve the quality and performance of synthetic oils. Additives can be used to provide all the additional features your high-mileage motor oil needs. These are some of the most commonly used additives:

  • Detergents are used to remove the deposits that have accumulated on the engine. This prevents clogging, and improves efficiency. 
  • Viscosity-index improvers: If your vehicle doesn’t require too thin an oil, these additives prevent the oil from getting too thin as the temperature rises. 
  • Dispersants: Dispersants don’t allow particles to stick together. The more potent dispersants are, the less likely there is for oil to form sludge.


You will have to take extra care of your engine as it ages. It is best to switch to oil with high mileage that will protect your engine. 

These oils repair the engine and help increase the engine’s lifespan while improving performance. Do your research, and look at a few products to find the best engine oil. 

You must check your engine’s requirements and select the oil that can address the issues you have been facing with your engine. This article can be used as a guideline to help you choose the right motor oil for your high-mileage engine.

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