High Mileage Oil



In case you own a well-worn vehicle that has been your road-companion over a few thousand miles, it is probably time to think about its engine maintenance and performance. Running a high-mileage oil would be the solution for its engine’s extended life. They can be surprisingly effective if they are constantly used because they have powerful ingredients that can protect a motor from easily wearing out, and can make its seals more flexible in order to prevent future leaks. Generally, they might cost a little bit more than the standard lubricants but their benefits outweigh other oils in the long run.

Top 8 High Mileage Oils Comparison

Photo Product Quantity (qt.) Recommended For Contains Benefits Price

Best Overall
1. Royal Purple ROY11748 5 All types of engines Zinc/phosphorus anti-wear additive Superior corrosion protection Check Price
2. Pennzoil 550045205 5 All types of engines Conditioning agents Reduces leaks and oil consumption Check Price

Our Choice
3. Mobil 1 – 120769 5 All types of engines A blend of high-performance synthetic base oils Contains a boosted level of seal conditioner Check Price
4. Valvoline 5W-30 MaxLife 5 All types of engines Synthetic blend Seal conditioners
5. Valvoline 5W-20 MaxLife 5 All types of engines Durable anti-wear additives High-temperature protection under severe driving conditions Check Price
6. Castrol 03129C 5 All types of engines Agents that reduce leaks and power-robbing deposits Improves fuel economy Check Price
7. Shell Rotella T4 4 Heavy-duty engines Advanced additives Improved oil aeration
8. Castrol 03102 GTX 5 Cars with over 75,000 miles Conditioning agents Reduces leaks and minimize engine wear

High Mileage Lubricant Reviews

Royal Purple ROY11748

If you drive an old vehicle that has at least 75000 miles on it, this is your go-to solution for prolonging the lifespan of the engine and thus enjoying the car for long time. As it is designed to be compatible with all types of engines, you needn’t check if it is a proper pick for your car as you have to with other products. Furthermore, its 5-quarter capacity ensures you will use it a few times before having to buy a new one.

What It Contains

The formula of this effective oil is composed of robust zinc/phosphorus additives that have anti-wear properties, thus helping protect the motor and prolong its lifespan. Another important ingredient is the additive technology Synerlec which ensures an impossible to surpass film strength.

How It Benefits the Motor
  • Engine wear is greatly delayed;
  • Drain intervals are extended;
  • Great oxidation stability is ensured;
  • Deposits are unlikely to gather on the motor;
  • Restores any lost performance of the engine.
How It Works

It works by creating a molecular ionic attraction to the metal components, thus providing with a film of oil that helps minimize wear and tear when you are starting up the car and soliciting the motor. Doing so, it helps reduce oil consumption in high-mileage engines, the detergents that make it up also helping remove build-up and deposits. Thus, corrosion will occur a lot later if never under proper maintenance circumstances, and the engine is bound to have a longer lifespan.

PROS CONS
  • Minimizes wear and restores lost engine performance
  • Reduces engine deposits
  • Provides a superior corrosion protection
  • Extends drain intervals
  • It doesn’t protect against leaks
VERDICT

Excellent option if you want your car to run smoothly. It provides a high level of protection against corrosion and extends the life of your motor. Additionally, it lasts for a long time.

Pennzoil 550045205

It features active cleansing agents that are able to continuously prevent contaminants and dirt from decreasing the engine’s optimal performance. It has properties that maintain the engine’s responsiveness, by conditioning its seals and reducing oil consumption. It is effective when it comes to lubrication and protection of the motor on a long-term, and in reducing leaks and preventing it from sludge and other damaging deposits. It is able to provide an enhanced protection for older worn engines and extending their life.

PROS CONS
  • Provides an advanced proprietary formula that lubricate motors
  • It reduces leaks and oil consumption in worn engines
  • Prevents sludge and other damaging deposits
  • Features a powerful formula that is fortified with Active Cleansing Agents
  • Limited warranty period
VERDICT

Good quality at a reasonable price. It does a wonderful job when it comes to lubricate the motor and to reduce leaks. The oil is made by a trustworthy brand, so you won’t be disappointed with its performance.

Mobil 1 – 120769

Mobil 1 presents a blend of high-performance synthetic base oils that are capable of reducing leaks, offering a better high-temperature protection of an engine. Comes with a boosted level of seal conditioner and reduces sludge deposits that over time might result in oil leaks. For more severe cases of engine sludge, it is recommended to change the oil at shorter intervals for a better performance. It is able to maintain a durable cleanliness of an engine’s parts, providing a superior corrosion protection and an extended life.

PROS CONS
  • Enhances a proprietary blend of high-performance synthetic base oils
  • It offers a boosted level of seal conditioner
  • Provides a higher base oil viscosity
  • It ensures a clean motor
  • Doesn’t protect against leaks
VERDICT

One of the most popular products on the market. It lasts better in comparison to other oils. The manufacturing company has an experience of more than 30 years in this industry, so this formula is improved for offering the best results.

Valvoline 5W-30 MaxLife

The seal conditioners inside this oil ensure a rejuvenation of the aging engine seals, thus helping to stop and prevent oil leaks. It provides extra wear protection so that engine wear won’t occur that quick, while the anti-oxidants it contains ensure that oil breakdown won’t occur and that the engine won’t clog on deposits and sludge. Furthermore, it even features detergents which keep old engines clean as they work to remove any and all deposits.

PROS CONS
  • Contains detergents that help clean up old engines
  • Contains anti-oxidants which prevent oil breakdown and engine clogging
  • Comes at a reasonable price
  • Non-stop support provided in case you have technical questions and difficulties related to the product
  • It has a low functioning rate
VERDICT

Produced by the world famous Valvoline, the 5W-30 is a motor oil that will make a big difference when it comes to the way you drive your car as it has the amazing property of preventing clogs and it can even rejuvenate old engines by cleaning them up.

Valvoline 5W-20 MaxLife

Valvoline has powerful agents that are able to fight against 3 major damaging factors: heat, deposits, and wear. It contains strong anti-wear synthetic additives that can remain in the oil for longer periods of time. It can provide an outstanding protection of an engine even in the worst driving conditions. Due to its anti-oxidant properties, it is able to prevent oil-breakdowns and engine-clogging because of various formations of deposits. Its conditioners can rejuvenate the engine’s estate and seals, and prevents possible future leaks.

PROS CONS
  • It contains powerful agents that rejuvenate aging engine seals
  • Has anti-oxidants that prevent possible oil breakdowns
  • It provides a superior cold-temperature protection through faster oil flow at start-ups
  • Non-stop support provided in case you have technical questions and difficulties related to the product
  • It has a low functioning rate
VERDICT

The oil lasts long and helps save fuel mileage. Additionally, it provides protection against cold and hot temperatures. It is made of long-lasting anti-wear additives and is available at an affordable price.

Castrol 03129C

Castrol is a part of the strongest and most advanced formulas of fully synthetic engine oils. Being engineered with a fluid titanium technology, it is able to provide a superior motor oil strength and maximize the motor’s performance over time. In order to keep an older engine performing at its best capacity, it is highly recommended to maintain the vehicle’s proper maintenance. It is capable of maximizing the performance of high mileage engines by reducing leaks, oil burn-offs, and damaging deposits.

PROS CONS
  • It maximizes the engine’s performance on long term
  • It is boosted with extra fluid titanium technology
  • It provides a superior cold-temperature protection through faster oil flow at start-ups
  • Improves fuel economy
  • Customer service could be better
VERDICT

It makes your engine run smoother while improving its performance. Furthermore, it helps reducing leaks, as well as wear and frictions. At the same time, this oil does an excellent job at improving fuel mileage.

Shell Rotella T4

A 1-gallon solution to keep your aging engine in a top-notch shape so that your car may run just as well as it did when you first bought it, the T4 is a car care product we strongly recommend as it is manufactured by one of the leading brands on this market. The advanced additive technology used to produce it makes it provide a thorough, superior cleanliness for the engine throughout the drain interval. The shear stability provided provides better viscosity control, and it delivers an improved oil aeration that is hard to stumble upon anywhere else. Furthermore, it helps heighten emission control system durability to prolong the engine’s lifespan as much as possible.

PROS CONS
  • Helps heighten the emission control system
  • Provides superior engine cleanliness
  • Improves viscosity control
  • Comes at a reasonable price
VERDICT

Reasonably priced and produced by one of the more resounding companies in terms of car care, the Rotella is an oil you can rely on to provide proper protection for your aging enginge so that it may serve you well for even more years.

Castrol 03102 GTX

This product is suitable for cars that have a high mileage. For those cars, this item will be able to help prevent catalytic converter and emission system failure. Thus, you will be able to preserve the functionality of the motor for longer. Additionally, the superior dispersancy will fight sludge built-up. Hence, you will not have to go to your local sevice station so often. The exceptional oil burn-off protection exceeds industry standards. This is based on API and ACEA volatility specifications. You should purchase it if you want to reduce leaks and minimize engine wear.

PROS CONS
  • Made from a sturdy and durable material
  • Provides a folding system for an easy assembly and storage
  • It has an adjustable brace for the bike’s front wheel stability
  • Built-in multi-purpose tray
  • Limited warranty period
VERDICT

This product sells so well because it has advanced additives that will minimize the engine wear. This is very useful for the people that have vehicles with over 75,000 miles onboard. In addition to this, it improves fuel economy.

Engine Maintenance Tips


A functional car requires regular maintenance to work at its best performance. This means keeping in a good shape all its parts in order to reduce later expenses. Let’s have a look at a few basic maintenance tips that are useful for an engine’s good functionality over time.

  • Regular oil checks
    It is said that oil is the engine’s blood, and because inside there are plenty of parts that are constantly rotating, they need to be often lubricated. Over time, the quality of the oil decreases and little amounts of it get burnt off inside the engine. This is the reason why you constantly need to change its oil, otherwise, the friction will start increasing, leading to mechanical wear. In this case, the engine will be exposed to sludge and carbon deposits.
  • Prevent the engine from over-heating
    The fuel that burns inside an engine generates a huge amount of heat. The cooling system is responsible for keeping a low temperature of the engine, but in case of possible malfunctions, the engine will be exposed to overheating. It is recommended to check the coolant’s levels and see if there are any leaking signs. In case the cooling system works fine but the engine’s temperature is still aggressive, you should probably take your car for a more detailed verification.
  • Verify the timing belt
    The timing belt should be regularly checked for wear and tear signs and should be generally replaced from 60000 miles to 90000 miles. It ensures that the valves worked by the engine’s camshaft open and close at the same time with the pistons. If it gets damaged it will probably snap while the engine is running and this can lead to serious engine issues.
  • Verify the air filter
    The air filter is the part that keeps debris and dust away from clogging the engine. If the air filter gets clogged, it will not be able to give the engine proper ventilation, leading to a poor performance and a decreased power. It would be recommended to change the air filter at regular periods of time according to your car’s user manual.
  • Change worn out drive belts
    Because the drive belt is directly connected to the alternator, air-con compressor and other accessories from the engine, it can create great damages to the entire system in case it breaks down. You should pay attention to possible noises that may appear over time because they might suggest an immediate replacing. You can check the drive belt every time you change the oil.

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