The best high mileage oil is as important to your vehicle as fuel. It is critical to the smooth functioning of an engine. It reduces friction between moving parts by lubricating them and decreases wear and tear. 

Also, it aids in keeping the entire unit cool, and it becomes more important as the vehicle gets older. 

Although modern cars can run without changing oil for a longer time, they still require a regular oil change. Neglecting this routine comes with consequences. It can be just a change in the mileage, or it can damage your vehicle’s engine parts.

The US department of energy states that regular oil changes can enhance the mileage of your vehicle by 2 percent every year. Hence, a routine oil change is the best thing you can do for your vehicle’s mileage.

So, read on to find the best high mileage oil that can improve your vehicle’s performance. We meticulously researched and chose only the best available products.

Best Choice


Royal Purple 11748 HMX SAE 5W-30 High Mileage Synthetic Motor Oil - 5 QT

Premium Choice


Valvoline High Mileage with MaxLife Technology SAE 5W-30 Synthetic Blend Motor Oil 5 QT

Best in Budget


Castrol GTX Conventional Motor Oil

Best High Mileage Oil: Reviews

High mileage oils help in reducing your engine’s wear and tear, which improves its performance. As these oils also extend the engine’s life, you must invest in a quality product. You’ll find plenty of options available in the market, where all offer exciting features. 

To help you zero in on the ideal oil for your vehicle, we have listed and reviewed some of the best high mileage oil out there. Have a look! 

1. Valvoline High Mileage Motor Oil


  • The oil’s anti-wear additives protect internal parts and prevent breakdown 
  • Added detergents keep deposits and sludge away 
  • The synthetic blend prevents engine leaks 
  • Enhanced lubrication keeps the engine quiet 
  • Prevents overheating of the engine 


  • It’s too expensive 

The top contender for the best high mileage oil is the Valvoline High Mileage SAE 5W-30. If you have a vehicle with a lot of miles under its wheels, you must check it out. With a formulation powered by MaxLife technology, it improves your vehicle’s performance and keeps those wheels running smoothly. 

This oil offers better protection to the moving parts of your vehicle by creating a protective layer over them. Moreover, it keeps the parts free from friction, and they don’t get worn out easily. 

The oil can withstand high temperatures, even on old engines that tend to heat up. Likewise, the modern formulation safeguards the engine from excess heat, increasing its lifespan as a result. 

Besides restoring your engine’s performance after heavy usage, the oil’s synthetic blend is good for the seals too. Further, its high viscosity guards the seals to prevent leaks. 

Most importantly, it comes with a convenient container and an easy to pour spout. 


  • Synthetic blend and unique MaxLife technology 
  • The container comes with an anti-glug design 
  • Ideal for engines over 75,000 miles 
  • Works well with old and new engines 
  • Suitable for long trips   


If you’re willing to pay top dollar forthe best high mileage oil, this is the best option. Also, it keeps your engine running perfectly at high temperatures. Moreover, it doesn’t let the car parts get corroded away easily.

2. Royal Purple High Mileage Synthetic Motor Oil


  • It minimizes oil consumption and improves engine performance 
  • Offers protection against Low-Speed Pre-Ignition 
  • Reduces oxidation, friction to prevent wear and tear 
  • The additive technology prevents lubrication starvation 
  • Prevents breakdowns and safeguards seals 


  • Some users state that its efficiency reduces after going 10,000 miles 

That is another one of the best high mileage oil and is the highest-rated product on our list. It’s designed for engines with over 75,000 miles, so you can be assured that your vehicle is in good hands. 

Sporting a unique purple color, the Royal Purple HMX SAE motor oil comes with advanced additive technology. Therefore, it allows the oil to tackle the internal components when they come in contact.  

That prevents the engine from wearing out quickly and lasting long. Moreover, as the oil reduces friction between components, it enhances the fuel efficiency of the vehicle. 

Further, this high mileage motor oil also offers superior rust protection. It is a feature all vehicle owners love, as many engine parts corrode with time and cause issues. Also, the synthetic blend adds a protective layer all over the engine components. 

In short, Royal Purple motor oil provides fantastic lubrication to the engine parts, so they keep running seamlessly for years. 


  • Enhanced additive chemistry, including Zinc/Phosphorus 
  • Manufactured in the United States of America 
  • Corrosion and oxidation resistant 
  • Synthetic blend for better lubrication 
  • Suitable for engines that undergo heavy usage 


Low friction, better oxidation, and corrosion resistance make the Royal Purple HMX SAE one of the best high mileage oil. Moreover, if you want to enhance your engine’s life by reducing wear and tear, this will be a good value for your money. 

3. Valvoline High Mileage Synthetic Blend Motor Oil


    • Affordable than other brands 
    • Prevents engine breakdown and overheating issues 
    • Offers enhanced lubrication to reduce internal friction 
    • Seal conditioners prevent engine leaks 
    • Excellent for handling heavy engine usage 


  • Minor lubrications issues in high-performance vehicles

If you’re looking for an excellent motor oil but are a little tight on the budget, then you need to check this out. The Valvoline SAE 10W-30 comes from one of the top brands in the motor oil business and is here to provide all the support your engine needs. 

Developed with high-quality additives and superior anti-wear technology, it protects all your engine’s components. The oil creates a protective layer or film all over the parts. So, all the components work smoothly, and the chances of engine breakdown are prevented. 

Most importantly, the advanced MaxLife technology helps your engine stay in shape even after heavy wear and tear. Moreover, this feature is also beneficial in combating problems such as engine overheating. So, as a result, it increases the life of your engine. 

Another reason this product is among the best high mileage oil is its seal conditioners. So, even after running for hours at a stretch, the engine doesn’t leak too much. 


  • Developed using modern MaxLife technology 
  • Enhanced additives for handling engine issues 
  • It comes with premium seal conditioners and antioxidants 
  • Highly reputed brand 
  • The 5 Quart bottle contains an anti-glug tube, precision sprout, and a simple pull tab 


At this price range, you probably won’t find a better high mileage oil in the market. The oil will keep your engine cool, protected without any leaking issues. Moreover, you get an easy-to-use container to store and use this product effortlessly! 

4. Pennzoil High Mileage Motor Oil


    • Reduces deposits and sludge in the engine 
    • Prevents wear and tear 
    • Works excellent with SUVs (new and old), trucks, passenger cars, and vans 
    • Seal conditioning agents reduce leaks and cracked seals 
    • The oil container is easy to use and store 


  • The price might be high for some users 

Yet another one of the best high mileage oil, the Pennzoil is sure to impress all vehicle owners with its features. How does it stand out? Well, for starters, it is the first motor oil to be manufactured using natural gas and not crude. Moreover, the base oil is free from various impurities, so you get a high-quality oil to serve your engine. 

This mileage oil is developed using active cleansing agents. Also, these keep your engine’s internal components clean and free from filths. So, deposits and sludge are kept at bay, letting your engine continue operating smoothly.   

When your vehicle ages, the engine may require more oil and can also develop leaks inside it. Too much oil consumption also gives rise to other issues such as cracked seals. However, you don’t need to worry about these problems when you have Penzoil by your side. 

In addition, the seal conditioning agents will ensure no dry, broken, or leaking seals bother your engine. 


  • Made with purely natural gas 
  • Recommended for high mileage vehicles 
  • Suitable for most cars and trucks 
  • A very clean composition, without any impurities 
  • Contains active cleansing agents 


Although it might seem a little pricey, it offers great protection for your engine against wear and tear. Therefore, if you have a higher budget, then you can give this a shot. 

5. Quaker State Synthetic Blend Motor Oil


  • It offers outstanding wear protection 
  • Keeps deposits and engine sludge 
  • It has a high viscosity and offers better lubrication 
  • Reduces top-offs and seal leakages 
  • The seal conditioners keep seals flexible 


  • The product packaging isn’t of high quality 

If you’re searching for the best high mileage oil, you can’t miss this one. The Quaker State motor oil is designed for engines to handle daily commute. This motor oil is also excellent for users who drive their vehicles occasionally. Therefore, the oil will make sure your engine doesn’t get worn out easily. 

The product is highly recommended for cars and trucks running more than 75,000 miles. Also, you must remember that your car engine won’t be in the same shape always. With time and usage, it might start consuming more oil than usual. Further, the engine may also burn off at times. As a result, it will require regular top-offs. 

And, the product offers durable protection against wear and also protects the core parts of the engine. Moreover, rust protection will safeguard the engine from acids created from contaminants. 


  • Exceeds industrial specifications such as ILSAC GF-6A and API SP/SP-Resource 
  • Previously called Quaker State Advanced Durability 5W-20 motor oil 
  • The product comes in an attractive bottle 
  • Well-suited for engines which going through regular commute at high-speeds 
  • Handles internal engine friction 


It may not have a huge brand name to boast but still protects your engine efficiently. Most importantly, many customers have praised its ability to work smoothly on old and new engines. So, you can use it on all types of engines.   

6. Castrol GTX Conventional Motor Oil


  • Excellent protection against sludges
  • Additives decrease leaks and enhance seals
  • Acts against excessive oil consumption
  • Good protection against thermal breakdown
  • You can get up to 500K miles of coverage


  • It requires a heavy oil filter
  • Can burn sometimes

Castrol has a solid reputation as a producer of superior quality engine oils. They manufacture reliable conventional as well as synthetic motor oils. 

The Castrol GTX Conventional motor oil blends the conventional engine oil with a mixture of additives. Also, these additives are made of high-quality components formulated to improve the mileage of cars. 

The additives also have conditioners that can decrease leaks and improve seals. The additives act against excessive oil consumption and ensure durability.

The liquid engineering technology is infused to protect the engine against problems. They can also discourage the formation of any new sludge. Sludge is responsible for the decline in engine performance over time.

It has a unique tri-shield technology that can give excellent protection against sludge protection. Thatalso decreases the chances of thermal breakdown, which can help your engine last longer with high performance.

It has a viscosity of 20 w- 50 and performs fairly well in high temperatures as well. This motor oil can also extend the lifetime of your engine. Castrol tested it on engines with high-level deposits.

Also, you can protect your money with the special feature known as the Castrol Engine Warranty. You can enroll and get up to 500K miles coverage.


  • 5 quart, Pack of 3: Ensures durability
  • The viscosity of the motor oil: 20w- 50
  • Improved for harsh driving conditions: poor quality fuel and high traffic
  • Liquid Engineering: Prevents sludge formation
  • Conditioners: Reduces oil leaks


Castrol is a popular brand name in the motor oil industry. Additionally, this is one of their best high mileage engine oils. Moreover, it has an excellent ability to protect the engine against sludge formation and enhance efficiency.

Things to Consider When Buying the Best High Mileage Oil

Several factors go into the making of the best high mileage oil. Nevertheless, how will you decide if particular motor oil is the most suitable for your vehicle?

You can know by evaluating certain factors that can decide how suitable each product can be for your vehicle. To help you with this process, we have a detailed guide to seeking the most befitting product.


Viscosity is the most critical factor to look for in motor oil. Effective motor oil will maintain its viscosity at all conditions, including fluctuations in temperature. 

The more viscous your motor oil is, the better it is at lubricating the moving parts. Oils that are low in viscosity can thicken at cooler temperatures and thicken at hot temperatures. That may lead to a decrease in performance. 

The viscosity of motor oil is stated in this fashion, Xw-YZ, for example, 20 w- 50. The 20w refers to how quickly the engine can start at zero degrees Fahrenheit. The 50 refers to the thickness of the oil when the temperature is high.


High mileage oils can work for vehicles with mileage more than or equal to 75,000 miles if your vehicle is at this stage and needs enhancement in terms of mileage. You can go for the high mileage products.

However, not all high mileage oil can suit your vehicle. Some vehicles may need an oil that requires a much older mark.

Hence, always ensure that you are aware of your vehicle’s mileage ranges before selecting the product.


The best high mileage oil will not only provide high mileage, but it will also protect from various factors. These factors often hinder the performance of your vehicle.

It includes protection from wearing of engine parts. It can elongate your vehicle’s lifespan. 

Also, they should protect your engine against the formation of sludge. Sludges, like cholesterol in the human body, will prevent the flow of fuel. That can decrease the mileage as well as the performance of your engine.

Hence, pick up a product that can protect your engine against wear and sludges.


Motor oils usually are infused with additives formulated to enhance different factors. It can constitute anywhere from 15 percent to 25 percent of the total composition.

The main purpose of adding it is to increase performance and enhance the viscosity. Some of the activities to look for better mileage are as follows.

  • Viscosity index additives
  • Anti-wear additives
  • Detergents
  • Dispersants
  • Friction modifiers.
  • Anti-foam additives.
  • Rust and corrosion inhibitors.
  • Dexos
  • Pour-point depressants
  • Antioxidants
  • ZDDP or zinc dialkyl-dithiophosphate

Fuel Economy

Select a high mileage motor oil that can help your vehicle in maintaining fuel efficiency. It should also protect the horsepower by decreasing the formation of any deposit, including sludge.

That will not only help you save money on some gas, but it will also aid in increasing the durability of the engine.

Frequently Asked Questions 

If you still have questions about the best high mileage oil, this section will clear it all out – 

How Often Do I Need to Change My Mileage Oil? 

The frequency of changing the engine’s oil depends on usage, miles covered, age of the car, and type of engine. Therefore, if your engine is old, the parts are breaking, and its performance is poor, you need to change the oil more often. 

On the other hand, for newer vehicles, follow the manufacturer’s instructions while changing the oil. However, a safe bet will be changing it every 7500 or 10,000 miles. Similarly, for older engines, it’s recommended to change the oil every 5000 miles.

Will Weather Affect My Engine Oil? 

Yes, it will. Extreme cold will slow down the engine oil flow and might make it thicker. As a result, your oil pump can stop working and might face other issues. 

If it’s very hot outside, the mileage oil in your engine will get thinner. So, it will circulate quickly, and your engine won’t get the necessary lubrication or protection. However, if you pick one of the best high mileage oil listed above, you can prevent these issues. 

These oils have seal conditioners and antioxidants. Therefore, it will keep your engine running effortlessly! 

Is Choosing A High Mileage Oil A Good Decision? 

It depends upon the usage of your vehicle’s engine. If it covers more than 75,000 miles, switching to a high mileage oil will be a smart option. So, your engine will enjoy features such as reduced oil consumption and enhanced protection of core components.  

As the best high mileage oil are manufactured with a synthetic blend, it will improve the lubrication inside the engine. In addition, even if the core parts have metal-to-metal contact, the oil will reduce the friction between them. As a result, the engine will be less worn out and run better. 

These high mileage oils also have added detergents. Therefore, it will help in keeping the engine clean from within. In addition, the sludge that builds up upon years of use can be tackled in this way.   

Which Mileage Oil Will Be Ideal for My Vehicle? 

There’s no straightforward answer to this question. It’s because there are plenty of oils in the market with differences in composition, viscosity, detergents, and additives. So, the best way to figure out which of the best high mileage oil will suit your car is to check its specs. 

Have a look at the type of oil your manufacturer provided your car when you bought it. You can contact the manufacturer to know more about it. Further, make sure you don’t mix two oils with varying viscosities. Also, remember that synthetic and mineral oils are different. 

So, it is best to consult a mechanic before choosing your motor oil. However, if you’re still in doubt, our handy buyer’s guide for the best high mileage oil will help you.      

Let's Wrap Up

Regular oil maintenance after your vehicle has more than 75,000 miles on its meter can help in more ways than just durability. It can counter the signs of aging and by giving it beneficial components.

You can choose any of the products mentioned above. Ultimately, the best high mileage oil is the formula to prolong your vehicle’s lifetime.

Best Choice


Garmin DriveSmart 65, Voice-controlled GPS Navigator

  • Trip advisor
  • Bluetooth connectivity
  • Wi-Fi
  • Foursquare data
  • Traffic cables 
  • Voice-activated navigations
  • Driver alerts
  • Access real-time features
  • North America maps

Premium Choice


Garmin dezl 580 LMT-S, Truck GPS Navigator

  • Universally  Compatible
  • Bluetooth compatible
  • Built-in Wi-Fi
  • Smartphone pairing
  • Easy navigation
  • Preloaded with popular points of interest
  • Easy Break planning
  • Free updates

Best in Budget


Garmin Drive 61 USA LM GPS Navigator System

  • 6 Inches Screen
  • Voice-Activated Navigation
  • Lightweight
  • Easy menu
  • Driver Alerts for Dangerous Turns
  • TripAdvisor Ratings

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