8 Best Motor Oil For Cars Over 100K Miles For High Performance in 2022

best oil for cars over 100k miles

Over time, the car engine faces many problems such as wear, oil leaks, or high friction between its components. Therefore, it required a special oil for its correct operation. The best oil for cars over 100k miles covers all the needs of older vehicles.

There are many reasons high mileage engines need the right oil to perform at their best. First of all, your car probably leaks. Yes, it marks its territory every time you park it. It leaks and leaves puddles in your driveway.

Second, it is likely to produce bluish-white smoke, a sign that it is burning oil. Quality oil helps protect your engine from engine sludge and other harmful deposits.

Depending on the type of oil, engine protection is done in two ways. Some additives present in oils clean and remove unwanted substances while coating and lubricating internal engine parts. These include anti-wear compounds and detergents, among others. 

Now it is clear to you that you need the right kind of oil for making the engine tasks easy. So the next hurdle is finding the best oil for cars over 100k miles. 

If you’re looking for the right type of oil for your high mileage vehicle, you’ve come to the right place. Here is a complete list and comprehensive guide to the best high mileage motor oil.

Top Pick For Best Motor Oil For Cars Over 100k Miles

Oil is required for better performance, less wear, and longer engine life. Most available lubricants can perform all of these functions.

However, depending on the age of the engine, you need the right type of oil, which will not improve engine performance but will also prevent any problems that arise after prolonged use.

Many engine oil additives are currently available for vehicles that run long rides. But we choose top picks for the best oil for cars over 100k miles that match your vehicle’s condition and keep it running at its best.

  1. Royal Purple 11748 HMX SAE 5W-30 High Mileage Motor Oil
  2. Valvoline High Mileage 5W-30 Synthetic Blend Motor Oil
  3. Pennzoil High Mileage Conventional 10W-40 Motor Oil
  4. Shell Rotella T5 Synthetic Blend 10W-30 Diesel Engine Oil
  5. Castrol 03102 GTX High Mileage 5W-30 Motor Oil
  6. Mobil 1 High Mileage Full Synthetic Motor Oil
  7. Amazon Basics Full Synthetic High Mileage Motor Oil
  8. HAVOLINE 5W20 High Mileage Synthetic Blend Oil

Types Of Motor Oil- Which Is Good For You?

Oil changes are possibly the most important maintenance any driver will require in their lifetime. This grease is responsible for keeping your engine properly lubricated and absorbing excess grease to prevent overheating.

Although all motor oils serve the same purpose, there are different types of oil: synthetic oil, high mileage oil, semi-synthetic oil, and conventional oil. Below we discuss each type of oil specification.

  • Conventional Oil

This type of oil is the most traditional and comes in a variety of qualities. Conventional oil is cheaper and is recommended for older vehicle models with less complex engine designs. You can expect the change interval to be between 3,000 and 5,000 miles.

  • Synthetic blend Oil

Synthetic blend oil offers the best performance at an affordable price. It has many of the properties of fully synthetic oil but at a much lower price.

This type of oil is a blend of synthetic and conventional base oils plus some additives for increased oxidation resistance and excellent low-temperature properties.

Synthetic blends make it easy for riders to switch from traditional to synthetic oil, which is why this type of oil is becoming more and more popular with today’s most successful riders.

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  • Full-Synthetic Oil

Synthetic motor oil is made entirely in a factory or laboratory. Because of this, they tend to be a lot more consistent; It’s easier to control manufacturing processes when all your materials are subject to much stricter standards.

As such, these oils are more refined and generally better for your engine. But that comes at a price. Fully synthetic engine oil is more expensive than conventional oil.

  • High-Mileage Motor Oil

High Mileage Motor Oil is specially formulated for newer vehicle models or newer vehicles with over 100,000 miles. High Mileage Motor Oil, with its unique formulations and additives, helps reduce oil burn and prevents oil leaks that can occur in older engines.

For cars that run too long on the odometer, this added protection is vital, as oil burn is slightly more likely to be an issue, contributing to increased engine wear and reduced life.

Buyer’s Guide To Best Oil For Engines Over 100 000 Miles

Every engine has a different life and has different oil requirements. Therefore, there is hardly a product that is perfectly suited for cars over 100,000 miles. However, choosing the right oil is essential to ensure better engine performance and life.

We have created a buying guide to help you make the best buying decision. Below is a list of some things to consider before investing in the best oil for cars over 100 000 miles.

  • Viscosity Grade

When comparing motor oil for cars over 100 000 miles, you may see confusing numbers and letter codes on the packaging. These indicate the viscosity grade, a measure of the oil’s resistance to flow. Two numbers define the viscosity of an oil.

The first number ends with the letter “W” which means winter. This measurement relates to how well the oil flows when it is cold, such as when the engine starts. The second number is defined by the oil flow at normal operating temperatures.

Thin, low-viscosity oils flow more easily to protect engine parts in cooler temperatures. Thick, high-viscosity oils are often better at maintaining film strength to protect engines at higher temperatures.

  • Vehicle Age

The standard recommendation is that cars or trucks with more than 75,000 miles should use high mileage oil. However, if your car still runs like new and you use synthetic engine oil, don’t worry about the switch.

On the other hand, if you start noticing extra engine noise, oil stains on your driveway, or you have an oil leak, do your engine a favour and switch to high-mileage oil.

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  • Weather Condition

Whether you live in a hot or cold climate or regularly use paved or unpaved roads, you need to think about the conditions you typically encounter while driving. Different conditions can stress your vehicle in different ways, like if you often have to change your engine oil.

The conditions in which you live and drive are important when deciding which type of motor oil is right for you.

  • Additives

As engines age, sludge slowly builds up inside them. Even regular oil changes won’t get rid of whatever builds up inside. Using a recommended motor oil for cars over 100 000 miles can reduce and remove these harmful deposits.

These additives also reduce friction on aging engine parts. This prevents your vehicle’s engine from overheating and contributes to longer service life.

  • Price

This, of course, has a huge impact on the type of high mileage oil you choose. Several high mileage oils range from conventional to synthetic varieties.

Prices are determined by brand and variety. Synthetic oils are usually the most expensive. On the hand, conventional oil costs you less.

8 Best Oil For Cars Over 100 000 Miles in 2022

A car needs to run smoothly and perform at its best. For its better work, Lubricates improves, and protect the engine. There are many different oils on the market, but they are not all the same.

If you have a vehicle with a high mileage engine, you will need a specific type of oil for your vehicle. We have been selected as the top-rated motor oil for cars over 100,000 miles to breathe new life into engines.

1. Royal Purple 11748 HMX SAE 5W-30 High Mileage Motor Oil

best oil for cars over 100k miles
  • Package Information: Bottle
  • Viscosity: 5w-30
  • Brand: Royal Purple
  • Liquid Volume: 160 Fluid Ounces
  • Better wear protection
  • increase fuel efficiency
  • Superior corrosion protection
  • Extended drain intervals
  • Exceptional oxidation stability
  • Reduces engine deposits

Royal Purple is a popular brand for the manufacture of high mileage automotive oil to protect engines against wear, corrosion, and leaks and to restore lost performance. The oil features improved additive technology that reduces metal-to-metal contact.

With reduced friction comes increased fuel efficiency, saving you money in the long run. The use of this oil also ensures protection against corrosion. Plus, it features a proprietary anti-wear additive that helps reduce the harmful effects of exhaust gases hitting the catalytic converter.

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And the best thing about this oil is that you can use it in any weather. It is fully compatible with hot summer and cold environments. With its purple colour, it also attracts buyers to choose it.

In addition, it also uses a proprietary anti-wear additive that prevents the damaging effects of wear that can lead to serious engine problems. Royal Purple 11748 motor oil also increases fuel efficiency to give you the best value for money.


  • Boost engine performance
  • Minimize fuel consumption
  • Reduces engine deposits
  • Offers superior corrosion protection
  • Reduces friction


  • Expensive

2. Valvoline High Mileage 5W-30 Synthetic Blend Motor Oil

best oil for cars over 100 000 miles
  • Package Information: Bottle
  • Viscosity: 5w-30
  • Brand: Valvoline
  • Liquid Volume: 160 Fluid Ounces
  • Help to prevent oil leaks
  • Extra wear protection 
  • Remove sludge and deposits
  • Prevent oil breakdown
  • Extra cleaning agents
  • Additional anti-wear additives

Valvoline Blend Motor Oil is a highly efficient oil with a durable and robust formula to ensure the best engine performance. It provides exceptionally high and low-temperature protection to vehicle engines during cold starts or bumper-to-bumper traffic.

If you own a vehicle with over 100,000 miles, you need to up your game to keep the engine from failing. Otherwise, you will soon face the failure of your engine. Valvoline has all features that offer better protection for the engine.

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Its molecules form a strong protective layer around the moving parts as the moving parts are free from friction and wear at all times. This oil is made with antioxidants that are known to prevent engine clogging from sludge and deposit formation.

This helps to reduce exhaust emissions from the engine. A clean and healthy engine also performs better. We recommend users of this oil use it in conjunction with other Valvoline products for the full experience.


  • Outstanding quality
  • Works well to stop leaks
  • Lasts longer even on an older vehicle
  • Makes the engine smoother and better


  • Not Dexos compatible

3. Pennzoil High Mileage Conventional 10W-40 Motor Oil

best motor oil for cars over 100 000 miles
  • Package Information: Bottle
  • Viscosity: 10W-40
  • Brand: Pennzoil
  • Liquid Volume: 160 Fluid Ounces
  • Helps prevent sludge
  • Contains seal conditioning agents
  • Provides proven wear protection
  • Single 5-quart bottle
  • Reduce the oil consumption
  • Prevent leaks

Pennzoil High Mileage Motor Oil is formulated to provide excellent wear protection and prevent leaks that affect the engine performance. This high mileage motor oil works wonders on dry, cracked engines by sealing them to reduce leaks and oil consumption.

And reduce the additional amount you pay for the trip. This oil has been specifically formulated to help your vehicle meet and exceed its expected life and function. The oil is intended for vehicles with mileage greater than 75,000 miles.

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It comes in a box of five quartz and is packaged in a single package for better and easier use. Because it is a traditional type of oil, it is inexpensive compared to other lubricants you can buy for vehicles that have mileage greater than 100,000 miles.

Additionally, once applied, this oil will help protect your vehicle from the effects of low-speed pre-ignition. And let your engine start smoothly.


  • Offers excellent protection against leaks and corrosion
  • Affordable
  • Prevent sludge and damaging deposits
  • Increase fuel efficiency


  • Not compatible with extreme weather

4. Shell Rotella T5 Synthetic Blend 10W-30 Diesel Engine Oil

recommended oil for high mileage cars
  • Package Information: Bottle
  • Viscosity: 10W-30
  • Brand: Shell Rotella
  • Vehicle Service Type: Tractors, Car, Truck
  • Liquid Volume: 128 Fluid Ounces
  • Extended drain capabilities
  • Use Triple Protection Plus technology
  • Protection against leaks wears, and oil breakdown
  • Offers low-temperature flow
  • Reduce wear in harsh climates

Shell Rotella is a famous brand known for manufacturing high-quality oil for cars over 100 000 miles to extend engine life. It is a fully synthetic diesel oil that can be used in all diesel engines such as cars, sedans, and heavy trucks.

In addition to increased heat resistance, it also helps keep your engine clean. As a synthetic oil, it has the right components to prevent engine wear.

As emissions are a major concern for diesel vehicle owners, this product has the potential to reduce emissions. This is due to its low ash formulation, which prevents exhaust poisoning.

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It also protects against soot and other contaminants. In addition, this Shell Rotella diesel can be used to increase fuel efficiency. According to the manufacturer, this oil can increase fuel efficiency by 1.5 percent compared to conventional 15W-40 oil.

The Triple Protection Plus technology in this oil also protects against turbocharger deposits. It is therefore also suitable for supercharged engines.


  • Compatible with all diesel engine
  • Works in extreme weather
  • Keep the engine clean
  • Prevent engine from rust/dirt/leaks


  • Can be used in diesel engine

5. Castrol 03102 GTX High Mileage 5W-30 Motor Oil

best oil for high mileage diesel engine
  • Package Information: Bottle
  • Viscosity: 5w-30
  • Brand: Castrol
  • Liquid Volume: 160 Fluid Ounces
  • Prevent Deposit Build Up
  • Reduce Leaks, oxidation
  • Protects against sludge and burns off
  • Prevent catalytic converter failure
  • Seal conditioners
  • Fully synthetic

If you have no idea which motor oil suits your vehicle and immediately improves your engine’s performance, then Castrol High Mileage Motor Oil is for you. Castrol is best known for its high-performance synthetic oils.

It contains all the essential elements that allow the engine to work better. Additionally, it improves engine viscosity and reduces friction with titanium friction modifiers.

It is specially formulated with less phosphorous than other leading oils, replacing it with advanced technology patented by Castrol. This technology helps prevent catalytic converter and exhaust system failure and provides unmatched sludge protection.

In addition, Castrol GTX oil features advanced high mileage additives. With this synthetic oil, you can accelerate to more than 100,000 without any problem

Additionally, Castrol manufactures this oil to prevent sludge formation. Castrol offers exceptional oil burn protection by industry standards set by API and ACEA.


  • Ideal to prevent catalytic converter
  • delivers unmatchable protection against burn-off
  • Reduce the friction between components


  • The price is high

6. Mobil 1 High Mileage Full Synthetic Motor Oil

best synthetic oil for high mileage engines
  • Package Information: Bottle
  • Viscosity: 5w-20
  • Brand: Mobil 1
  • Vehicle Service Type: Car
  • Liquid Volume: 160 Fluid Ounces
  • Perfect for engines with over  10,000 miles 
  • Meets ILSAC GF-6 standards
  • Provide low-speed pre-ignition
  • Offers superior internal engine heat protection 
  • Helps extend engine life

Mobil 1 Full Synthetic Motor Oil is a premium product designed to extend engine life beyond 100,000 miles. It has several features that ensure the longevity of your vehicle and give you a smooth ride. It comes with various helpful additives to protect critical parts of engines

You can also reduce sludge build-up by using this high-performance synthetic oil. This synthetic oil can work in extreme weather conditions. It has excellent protection against internal engine heat up to 500 degrees Fahrenheit.

Even during the winter season, you can easily start your car with its low-temperature protection that works down to -30 degrees Fahrenheit. It also meets ILSAC GF-6 standards, keeping your engine clean and increasing fuel economy.

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In addition, it works with all types of engines, from high-performance turbocharged engines to multi-valve fuel-injected diesel engines. And fully compatible with all cars, sedans, SUVs, and light trucks.


  • Can work with extreme temperatures
  • Boosts overall engine performance
  • Compatible with all types of vehicles
  • Reduces the sludge and wears


  • Not used in aviation engines

7. Amazon Basics Full Synthetic High Mileage Motor Oil

best oil for vehicles over 100 000 miles
  • Package Information: Bottle
  • Viscosity: 10W-30
  • Brand: Amazon Basics
  • Liquid Volume: 160 Fluid Ounces
  • Ideal for engines over 75,000 miles
  • Helps prevent harmful build-up
  • Reduces friction between components
  • Viscosity and thermal breakdown resistance
  • Helps reduce exhaust emissions
  • Full Synthetic, 10W-30 oil

The Amazon Basics brand offers high-quality, high-mileage fully synthetic motor oil for cars over 100 000 miles to keep them running smoothly. AmazonBasics High Mileage Motor Oil meets the needs of such engines.

It withstands the high temperatures in a high mileage engine to ensure a long drain interval. This motor oil is suitable for a wide range of cars or vehicles unless it is a turbo engine.

However, you should always read your vehicle manual to find the most suitable oil for your car. A surprising property of this oil is its viscosity stability. It’s hard to find motor oil that works in the colder seasons.

Often the oil will freeze and cause the car to not start or run. In this case, this Amazon Basics full synthetic motor oil prevents freezing issues.

The oil does not solidify even in winter and allows your car to run smoothly. By using Amazon’s base oil, you’ll enjoy a cleaner, healthier, and better-performing engine.


  • Rejuvenates hardened seals
  • Prevents leakages
  • Offers better wear protection
  • Value for money


  • The container may cause leakage

8. HAVOLINE 5W20 High Mileage Synthetic Blend Oil

best oil for engines over 100 000 miles
  • Package Information: Bottle
  • Viscosity: 5w-20
  • Brand: HAVOLINE
  • Liquid Volume: 160 Fluid Ounces
  • Helping to prevent oil consumption
  • Exceptional wear protection
  • Additional cleansing agents Included
  • Offers high engine performance
  • Oxidation resistance
  • Deposit shield technology used

This Havoline High Mileage Motor Oil is another high-efficiency motor oil formulated to meet the demands of 100,000+ mile engines, including everyday cars and light trucks.

The manufacturer has created the engine oil with anti-deposit technology, which makes it suitable for high-mileage engines. The feature increases oil consumption, so you can have a long-lasting engine.

In addition, the oil contains a special seal conditioner to control the health of the seals and reduce oil leakage. So that this oil is profitable. It is also good for cleaning, anti-wear protection, and seal conditioning. The oil contributes to a long engine life while offering a good performance. Havoline motor oils cover a wide viscosity range.

In general, these oils work reasonably well in cold weather but offer few options to choose from. The oils flow smoothly in the colder seasons and protect the engine from damage.


  • Offer complete wear protection
  • Give high fuel efficiency
  • Perfect for all weather conditions
  • Stop oil leakage and friction


  • The packaging could be better

Top FAQs About Recommended Oil For High Mileage Cars

What is the best oil for cars over 100k miles?

There are many types of motor vehicle oil. But some of them are suitable for engines with high mileage. However, Valvoline Full Synthetic Motor Oil is the perfect oil for cars over 100,000 miles. It uses MaxLife technology and is specifically designed to address the root causes of high mileage engine failure: wear, deposits, sludge, and leaks. 

Despite its affordable price, it contains anti-wear additives and performs well in both hot and cold temperatures. Antioxidants in Valvoline Advanced’s synthetic oil formula help maintain viscosity and detergents help prevent harmful deposit formation for longer performance.

What engines are high mileage?

The average number of miles earned from a vehicle each year is between 10,000 and 15,000 miles. Anything above that is considered high mileage. Generally, high mileage engines are those that run more than 15,000 miles per year. 

A car with high mileage brings better standards and technology to the automotive industry. However, for high-mileage engines, you should have proper maintenance and routine oil changes.

Why is high mileage good for cars over 100k miles?

As your engine ages, the gaskets begin to deteriorate. High mileage oil helps condition and restore these seals. Additionally, high mileage oils can improve engine performance and fuel economy. With these oils, you will see less burning and you will even be able to stop and prevent oil leaks. 

By switching to a high mileage oil, you can help protect your engine and keep it running for years to come.

Is conventional oil better than synthetic oil?

No In general, synthetic oil is considered better than conventional oil. The product has been developed in a laboratory to remain liquid at low temperatures and stable at high temperatures. In addition, it has a longer shelf life than conventional motor oil. Synthetic oil is also more refined than regular oil, which limits engine deposits. 

It’s cleaner and has fewer impurities. In addition, it does not decompose as easily and therefore offers a longer shelf life.

What is the longest-lasting motor oil?

Although it mainly depends on how you drive your vehicle and how you maintain it. However, Mobil 1 Full Synthetic Motor Oil is the motor oil to consider due to its excellent overall lubrication and wear protection. 

Their high mileage synthetic oil is designed to extend the life of your vehicle’s engine and maximize performance. If your vehicle already has sludge buildup, this oil can help clean it out, although shorter drain intervals are recommended initially in this case.

Is an oil additive worth it?

As engines age, sludge slowly builds up inside them. Even regular oil changes won’t get rid of whatever builds up inside. Using a recommended oil additive can reduce and remove these harmful deposits. These additives also reduce friction on aging engine parts. This prevents your vehicle’s engine from overheating and contributes to longer service life.

Final Thought

There are a variety of motor oils on the market today that can be used in vehicles that have mileage greater than 100,000 miles. Oils are formulated to help your engine perform at its best and prevent wear and leaks that can lead to engine damage.

Depending on your specific application and budget, you can choose the best oil for your car and breathe new life into your engine.

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