Valvoline vs Castrol: Best Authentic Comparison in 2023

Every car needs high-quality and perfect engine oil for the lubrication of the several moving parts of the engine as well as for the cleaning and cooling of the engine.

Valvoline vs Castrol is a long debate that has no end to it because both of these oils have unique characteristics and innovative manufacturing techniques.

Both of these oil brands are considered the most top-rated and popular engine oil brands in the world.

Due to their popularity, the debate between these two brands is very well known among the folks with automobile awareness and expertise. A question of the USA market, is Castrol oil good? The answer is in this guide.

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To help you to make a decision of purchasing the best oil for your dream vehicle, we will look at every aspect of this two oil brands in this detailed comparison focusing their strength & weakness.

Castrol vs Valvoline: Quick Overview

Valvoline Advanced Full Synthetic SAE 5W-20 Motor Oil 5 QT
  • ADVANCED PROTECTION AGAINST the four main causes of engine...
  • 40% BETTER WEAR PROTECTION vs. industry standard as tested in the...
  • 25% BETTER DEPOSIT PROTECTION with superior engine cleaning...
Castrol Edge 5W-30 Advanced Full Synthetic Motor Oil, 5 Quarts
  • 3X stronger against viscosity breakdown than leading full...
  • 10X better high temperature performance, as measured in Sequence...
  • 6X better wear protection
  • 1.4X better sludge protection, as measured in Sequence VH engine...
  • Meets ILSAC GF-6 to prevent low speed pre ignition (LSPI) and...

Last update on 2023-09-22 / Affiliate links / Images from Amazon Product Advertising API

Valvoline vs Castrol: Detailed Comparison

Both feature a range of motor oils in the categories of conventional and synthetic. The following comparison lists the main differences:



Valvoline lubricant and oil products have been circulating in the worldwide auto markets since 1866. It is a highly versatile oil and lubricant brand that has its roots in the United States of America.

Valvoline Advanced Full Synthetic SAE 5W-30 Motor Oil 5 QT
  • ADVANCED PROTECTION AGAINST the four main causes of engine...
  • 40% BETTER WEAR PROTECTION vs. industry standard as tested in the...
  • 25% BETTER DEPOSIT PROTECTION with superior engine cleaning...

Last update on 2023-09-22 / Affiliate links / Images from Amazon Product Advertising API

This company produces a wide variety of engine oil variants as well as motorcycle oils, auto chemicals, and grease.

All synthetic and conventional engine oil varieties of Valvoline are produced and distributed from their headquarters in the US. Valvoline has introduced innovative oil and lubricant types without compromising the quality of its products.

There is a huge variety in the motor oils, including but not limited to, Valvoline synthetic, Valvoline high mileage, Valvoline conventional, and Valvoline Maxlife.


Castrol is a widely known auto lubricant company that has its headquarters in the United Kingdom, and it was founded in 1899.

As famous as it may be in the whole world for its genuine and trusted engine oil products, Castrol is a subsidiary of the oil giant BP company.

Among the Castrol lubricant products, Castrol GTX, Castrol Synthetic, and Castrol Edge are considered the most reliable and recommended by auto experts.

Castrol 03060 GTX MAGNATEC 0W-20 Full Synthetic Motor Oil, Green, 5 Quart
  • Attention: Castrol Gtx Magnatec Will Be Transitioning To A Brand...
  • Dramatically Reduce Engine Wear
  • Leave Critical Engine Parts 4X Smoother. As Tested In The...
  • Superior Wear Protection On Critical Engine Parts

Last update on 2023-09-22 / Affiliate links / Images from Amazon Product Advertising API

The best part about the Castrol oil products is their compatibility with the sports vehicles like Mclaren, Renault, and Jaguar, etc. All of the lubricant varieties of Castrol are specialized for high performance and made with eco-friendly technologies.



Valvoline Full Synthetic High Mileage with MaxLife Technology SAE 5W-30 Motor Oil 5 QT
  • ENHANCED MAXLIFE TECHNOLOGY PREVENTS engine breakdown in extreme...
  • TREAT AND PREVENT LEAKS with premium seal conditioners to keep...
  • 25% EXTRA DEFENSE AGAINST DEPOSITS, sludge, corrosion and rust...
  • EXTREME TEMPERATURE PROTECTION through our high-quality base oils...

Last update on 2023-09-22 / Affiliate links / Images from Amazon Product Advertising API

  • Brand Name: Valvoline Inc.
  • Origin: USA
  • Viscosity Grades: 10W-40, 5W-20, 5W-40, 20W-50, SAE 30-60, 30 Non detergent
  • Temperature: -5F to 250F
  • Base: 85% base and 15% additives (virgin base oil)
  • Lasting Power: 150,000 to 300,000 miles
  • Suitable engines: Gasoline, motorcycles, heavy-duty and machinery
  • Recommendations: Cummins, Audi, Suzuki, Toyota, BMW, Chevy, Mini, Ford


Castrol EDGE Euro 0W-40 A3/B4 Advanced Full Synthetic Motor Oil, 5 Quarts
  • Recommended by world-leading car manufacturers
  • Engine protection for the entire drain interval even under...
  • For use in both gasoline and light duty diesel applications
  • Superior engine protection vs conventional and synthetic blend...

Last update on 2023-09-22 / Affiliate links / Images from Amazon Product Advertising API

  • Brand Name: Castrol
  • Origin: UK
  • Viscosity Grades: 20W-50, 10W-40, 5W-20, 5W-30, Monograde
  • Temperature: 350F to 650F
  • Base: Vegetable, mineral, and synthetic base oils
  • Lasting Power: Up to 75,000 miles
  • Suitable engines: Formula One, heavy-duty, motorcycle, machinery, sports, and gasoline
  • Recommendations: Caterpillar, Cummins, Renault, Volvo, Ford, BMW, Toyota, Volkswagen.

This section provides insights on the key features of Valvoline versus Castrol synthetic motor oils.

Manufacturing Technologies

Valvoline Maxlife and Synthetic formulas have antioxidants that control the level of friction in the engine parts and stop the lubricant from breaking down.

Valvoline High Mileage with MaxLife Technology SAE 5W-30 Synthetic Blend Motor Oil 5 QT
  • MAXLIFE TECHNOLOGY PREVENTS engine breakdown with 40% better wear...
  • REFRESH AGING SEALS AND PREVENT LEAKS with seal conditioners

Last update on 2023-09-22 / Affiliate links / Images from Amazon Product Advertising API

Castrol GTX and other variants are engineered in such a way that they prompt the engine to work faster while reducing the level of sludge formation.

Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil, 5 Quarts
  • Phosphorus Replacement Technology to help extend the life of the...
  • Superior dispersancy that fights sludge build up
  • Exceptional oil burn-off protection exceeding industry standards,...
  • Seal conditioners to help reduce leaks
  • Advanced additives that minimize engine wear

Last update on 2023-09-22 / Affiliate links / Images from Amazon Product Advertising API

Temperature Regulation

Valvoline synthetic formula has the ability to handle extremely low to high temperatures using its innovative technology and progressive additives.

Castrol formulas control the temperature variations in the vehicle engine by reducing the friction between components with the changing speed.

Protection to Engine

Valvoline Full Synthetic motor oil provides dedicated engine protection by fighting off the key causes of engine problems like heat and wear.

Castrol Premium Synthetic motor oil provides a shield to the engine by its ultimate strength and its ability to bear harsh conditions.

Durability Techniques

The Valvoline full synthetic option, as well as Valvoline conventional motor oil, contains long-lasting anti-wear formulas, increasing the life span of the engine.

Castrol, on the other hand, creates engine oil with its innovative wear-resistant technologies after scientific testing to enhance the engine experience.

Protection against sludge and gunk

All forms of Valvoline conventional and synthetic formulas have essential fuel cleaning additives for the safety against sludge and deposits.

Castrol motor oil formulas contain titanium-based technology which guarantees advanced protection against gunk and oil breakdowns.


When looking at every aspect of specific motor oils like Valvoline full synthetic vs Castrol Edge, pros and cons play an important role.


  • The biggest plus point of the Valvoline motor oils is the constant high-quality standard. No matter what Valvoline oil you get quality will never be compromised.
  • Diversity is another merit of buying Valvoline motor oils, you will get so many automobiles lubricant options.
  • Valvoline engine oil offers a shield against oil leaks and keeps the engine running during loss and instability.


  • Castrol motor oils have better compatibility with Formula One racing cars and sports automobiles like McLaren.
  • Castrol motor oils have pioneering Magnatec technologies that provide better lubrication, cooling effects and wear protection.
  • Castrol meets all of the engine testing milestones and provides extraordinary acceleration to your vehicle’s engine.



  • Valvoline synthetic motor oils are not very diverse in their compatibility, meaning they are not appropriate for motorcycle or diesel engines.
  • Valvoline motor oils do not provide the best mileage average for your vehicle.


  • The price range for Castrol synthetic motor oils like Castrol GTX or Castrol Edge is a bit higher when compared to other motor oils with similar properties.
  • Castrol engine oils are not suitable for diesel engines and they increase the petroleum consumption in your vehicle a bit.

Customer Feedbacks 


“Valvoline engine oil is reasonably priced and it does what it promises by bearing with the hot and cold temperatures I drive my car in.”

“My husband uses this motor oil for his truck and also buys this for my Toyota, it works perfectly in both of our vehicles.”

“Just got Valvoline for the first time and I must say the oil is super clean and has a long mileage, I recommend this oil.”

“Under this amount, Valvoline is the best oil with plenty of additives, have bought this product several times, very satisfied with the results.”


With Castrol High Mileage, I have no problems even in cruel winter weather the way I used to have with other engine lubricants”

“Highly recommended by me for those who happen to have a high-performance automobile as Castrol Edge will be able to perform easily.”

“I bought Castrol for the first time and I'm very impressed with the performance so far, it is one of the quietest engine oils ever, and had a smooth drive.”

“Lately my mechanic suggested that I start using Castrol synthetic, and it has been one of the best decisions for my car.”

Is Synthetic Oil Really Better?

When doing a comparison of Valvoline Maxlife vs Castrol GTX High Mileage, we cannot ignore the question of whether or not synthetic oil is better?

The answer to this question, however, cannot be a simple yes or no, because there are many factors to consider.

One general view says that synthetic oil is indeed better than conventional motor oil, as it offers much better performance and safety for your engine. Here are some of the reasons why synthetic oil is better than conventional oil:  

  • Synthetic oil is chemically more steady than conventional oil as it uses more refined and higher quality base oil.
  • It provides more lubrication due to even molecular structure and size, which reduce friction.
  • It has a much more refined manufacturing process and has excess amounts of detergent additives for sludge removal.
  • Synthetic oil guarantees cleaner engine parts with minute impurities.
  • It helps the engine perform more efficiently in harsh weather without any hindrance.
  • Synthetic oil has a higher range of viscosity grades as compared to conventional motor oils.
  • It provides an extra thick layer of protection against wear on metal surfaces.

Now let's have a look at the reasons which make people believe that synthetic oil is not better than conventional engine oil:

  • Synthetic oils have relatively lower fuel economy on high-speed roads as compared to conventional engine oils.
  • Synthetic engine oils cost way more than conventional motor oils whereas the properties of both types do not vary that much.
  • Synthetic oils are not well suited for newly bought vehicles due to the lower friction offered by the synthetic blends. New engines require a certain level of friction for their parts in the beginning.
  • With the advanced sludge cleaning properties of synthetic oils, they are not compatible with vehicles that date back to the 1990s and back. That’s because excessive sludge removal in older vehicles can result in leakage.

Also, read our related article on: Castrol vs Pennzoil: Which One Should You Choose?


1. Is Valvoline oil worth it? 

Valvoline engine oil is known for its high-performance and advanced sludge removal technologies. It is an extraordinary oil for your engine and is definitely worth the price because it meets every requirement of your engine.

2. Can I Mix Castrol And Valvoline?

Yes, you can mix Castrol and Valvoline engine oils, since both of these oil brands come in conventional, fully synthetic, and synthetic blends.

However, when mixing the two engine oils, make sure they have the precise specs like the same viscosity grade, etc.

3. Is Castrol Edge Fully Synthetic? 

Yes, the Castrol Edge is fully synthetic engine oil that is known for its Fluid Titanium technology, which makes it stronger than its competitors.

4. Is Castrol better than Total?

The regular users of both of these oil brands say that Castrol is somewhat better than Total. Castrol has both gasoline and diesel specific ranges whereas Total only makes engine oils for petrol-based vehicles.

5. What is the best high mileage oil brand?

According to many sources, Valvoline Maxlife 10W-40 High Mileage is considered one of the best high mileage oil. Pennzoil, Castrol, and Mobil High Mileage engine oils are also among the race of top high mileage engine oils.

6. How long does Valvoline full synthetic oil last?

The full synthetic engine oil from Valvoline lasts as long as 75,000 miles by providing the ultimate protection to the engine parts. The Valvoline Maxlife products have additional protection for the engine.

7. What is Valvoline's full-service oil change?

Valvoline has a full-service oil change facility, which includes some extra care for your vehicle. In the full-service oil change, your vehicle gets 5 quarts of any Valvoline oil, a brand new oil filter, and full lubrication of your engine components.

Final Verdict

To sum it up both of these engine oils i.e; Valvoline vs Castrol high mileage or any other type has similar qualities, with very minute differences.

They have not only the best mileage coverage but also provide one of the finest wear protection against the grit and deposits in the engine.

This extensive comparison between the Valvoline motor oil and Castrol engine oils will help you choose the suitable oil for your vehicle.

At the end of the day, the choice is yours. But, you should follow your car's manual for better performance.

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