A vehicle’s engine has several moving parts that require constant lubrication to keep them in the best condition. Engine oil makers have been formulating engine oils to enhance engine efficiency and increase engine performance.
With so many engine oils in the market, it is confusing to pick an ideal choice. With Castrol and Valvoline, it has never been easier to determine which fluid is best for your vehicle and why.
When it comes to engine oil, there are several players in the Canadian market; this includes Castrol, Mobil, Valvoline, Petro-Canada lubricants, Pennzoil, and Royal Dutch Shell Plc, among others.
However, you must choose the one that offers you a superior solution. Castrol and Valvoline are the two most renowned brands that are highly efficient in matching the demands of all types of vehicle engines.
These two top-rated lubricant brands are used in almost all repair shops and gas stations. So, which of the two is best? And why should you choose it over the other?
In this article, we have compared the benefits of Castrol and Valvoline to help you make the buying decision.
Types of Engine Oils
#1. Conventional Motor Oil.
Derived from refined crude oil, conventional motor oil is suitable for light-duty, late-model cars with simple engine designs. It offers adequate protection under standard driving conditions but may require more frequent changes compared to synthetic oils.
#2. Synthetic Motor Oil.
Engineered with chemically modified base oils, synthetic oils offer superior performance, including:
- Enhanced viscosity stability.
- Better resistance to oxidation and thermal breakdown.
- Improved fuel efficiency.
These oils are ideal for high-performance vehicles and extreme driving conditions.
#3. Synthetic Blend Motor Oil.
A mixture of synthetic and conventional base oils, synthetic blends provide improved protection during heavy loads and high temperatures without the full cost of synthetic oils. They offer a middle ground between conventional and full synthetic oils.
#4. High-Mileage Motor Oil.
Formulated with seal conditioners and additives, high-mileage oils are designed for vehicles with over 75,000 miles, helping reduce oil consumption and leaks. They maintain engine performance in aging vehicles.
Valvoline
If the long history of Castrol is impressive, the Valvoline history will be even more so. Founded in 1866, more than 30 years before Castrol, Valvoline was the first lubricant manufacturer to use crude oil as a base.
That means Valvoline is the first ever industrial and machinery oil as we know it today. Valvoline was also used in the first mass-production passenger car, the Ford Model T. Moreover, its innovations helped speed up the American industrial revolution significantly.
One of its more important milestones came in the year 1945 with the introduction of the X-18 motor oil, which solved a serious problem that drivers were facing at the time. Namely, every motor oil was made for a specific car, just like car parts are today.
And if you can’t find that particular oil, which often you couldn’t, there were no other options but to park the car. Well, the X-18 was a substitute for 18 different oil types, and it paved the way for modern motor oils, which are pretty much universal to all vehicles.
Otherwise, there would be no questions about which oil is best, you use the oil made for your car, and that’s it. But, one more way Valvoline revolutionized the industry is with the introduction of all-weather motor oil in 1954.
Before that, you had to use a specific oil rating for the winter and for the summer. That’s why many people even today ask, “should I switch up my motor oil in the summer and winter.” Well, thanks to Valvoline, you don’t.
Castrol
Founded by Charles Wakefield in 1899, Castrol first bore the name CC Wakefield & co. until almost more than 60 years later, when it changed to Castrol Limited.
The time it took the company to change its name to Castrol is surprising, considering its Castrol oil has revolutionized motor oil.
The Wakefield business in its early days started at Cheapside London, selling oils for heavy machinery like trains and boats. But, quickly after that, Charles Wakefield developed an interest in the increasingly popular internal combustion engines.
Those new engines demanded a type of oil that pretty much didn’t exist at the time, needing to be thin enough when cold and thicken when it heats up.
Well, Wakefield took it as a challenge, and its researchers found that adding castor bean oil to the formula would result in such properties.
That new oil or product came out in 1906 and was called Castrol. Essentially that’s when we got different viscosity ratings at cold and hot temperatures, 10W-40, for example.
To conclude, Castrol has revolutionized motor oil and practically invented the oil we use in our cars today. Moreover, it has been making motor oil non-stop for over 100 years now, and that by itself is enough of a testament to its quality.
But, if that’s not enough, Castrol oil was used in early land and water speed record vehicles, Alcock’s non-stop Atlantic flight, and even in the Mars Rover.
Valvoline vs. Castrol Synthetic
Synthetic engine oil is the to-go choice for many car owners due to its several benefits. Synthetic oils come from the chemical modification of petroleum products instead of being direct derivatives of crude oil.
The result is that synthetic oils are lighter, which makes them more efficient as lubricants. These oils work in different climates, and their outstanding performance translates to fuel economy and reduced emissions. Both Valvoline and Castrol have synthetic oil products.
Under the two brands, you will find full-synthetic and part-synthetic lubricants. Full synthetic oils are of higher quality after undergoing thorough processing to meet the specifications of newer vehicle model engines.
This engine oil has minimal impurities compared to conventional oil. Part-synthetic or synthetic oil blend, on the other hand, is a mixture of fully synthetic and conventional oil.
Valvoline synthetic oil brands include SynPower, a premium grade lubricant that will enhance the engine’s performance. There is the Valvoline ALL-CLIMATE full synthetic engine oil, suitable for different climates.
Castrol has the Castrol EDGE line of full synthetic oils. Here you find three products, Castrol EDGE full synthetic oil, which is ideal for new vehicle models for a decent performance. Castrol EDGE Extended Performance full synthetic protects critical parts of the engine.
Finally, there is Castrol GTX Magnate, a liquid engineered product with clingy molecules that adhere to the engine for its protection.
Castrol vs. Mobil 1, which is the best? Mobil 1 is a brand of synthetic lubricants, including engine oil, transmission fluid, grease, and gear oil. It has an upper edge against Castrol, courtesy of its preservation qualities and overall performance.
Castrol takes the top spot when it comes to the quality of its synthetic blends and performance on diesel engines.
Valvoline vs. Castrol Conventional
Conventional oil has been the main product of Valvoline and Castrol for a long time. Also known as mineral oil, it is a crude oil derivative, which is quite popular due to its affordability. However, its performance is relatively low compared to synthetic oils.
Castrol conventional oils include the Castrol GTX, which has been in production since 1968. It comes in handy in clearing sludge and preventing its buildup.
It translates to extended engine life. Castrol GTX diesel motor oil also prevents sludge accumulation and removes the previous buildup in diesel engines.
Valvoline conventional oil is the ALL-CLIMATE engine oil-conventional. It is suitable for a daily use vehicle, where it provides all-year-round protection to the engine parts.
This product is excellent for preventing common engine problems like engine noise and knocking, especially in extreme weather conditions.
Valvoline vs. Castrol Motorcycle Oil
Valvoline vs. Castrol motorcycle oil is another area to look at to know which of the two brands is the best. If you have a motorcycle, you should never compromise its maintenance, more so lubrication if you want a smooth ride.
The choice of motorcycle oil depends on the type of motorcycle you have. For instance, if you have a classic cruising bike, you need mineral oil for protection against heat. Mineral oils ensure ample protection of the wet clutch.
The best conventional oil for motorcycles is the Valvoline CHAMP 4T motorcycle oil. This lubricant is thermally stable, perfect for the older two-wheelers, more so the cruiser type.
If you have a sports bike, it is advisable to go for synthetic oils. They boost engine performance, ensuring you get maximum power. Castrol’s 4T engine oil with Trizone Technology is the best engine oil for a 4-stroke motorcycle engine.
This lubricant features the Power Release Formula that gives smooth and superior acceleration.
Valvoline vs. Castrol High Mileage
High mileage lubricants are perfect for both old and new engines, more so for those with a mileage of 75000 and above.
They help protect the older engines, making sure that they continue to perform to their best. Most high mileage oils use a viscosity modifier to conserve their viscosity.
Valvoline High Mileage with MAX LIFE Technology motor oil is a synthetic blend designed to work with aged engines.
Its formula comes through to protect this car part from friction, deposits like sludge, and heat. Its premium seal conditioners restore old seals and curb leakages.
Castrol has two high mileage lubricants to pick from; Castrol GTX high mileage and Castrol EDGE high mileage. Castrol GTX high mileage lubricant is synthetic-blend engine oil, sporting phosphorus replacement technology for wear protection.
The Castrol EDGE high mileage is a full synthetic oil with Fluid Titanium Technology. It also has phosphorous replacement technology to protect the catalytic converter. It is ideal for high-performance situations, relying on high-temperature resiliency.
In the high-mileage discussion, you can see that Castrol’s products have an upper edge over Valvoline. The replacement technology and existence of conventional and synthetic oil is another appealing factor.
Valvoline vs. Castrol: Heat Dissipation and Evaporation Test
The following test was conducted by “Nates Interactive Auto.” How it works is an equal amount of oil is put on a heater for the same amount of time, in this case, one minute.
The oil is weighed beforehand and again after the test. Also, a temperature gauge is set inside so we can monitor how well the oil dissipates heat.
When the oil is weighed after the test, the closer it is to the original weight before the test, the better it is because it’s less prone to evaporation. And, the less it heats up after a minute, the better it is at heat dissipation which is an important cooling property.
Since each test, including the later friction test, is done in pairs of two, I have compiled a list of all oils Nates Interactive Auto has tested.
Of course, testing engine oil is not a simple task, but what these guys have set up is absolutely genius, in my opinion. In any case, it’s the closest thing an average person can do to test motor oil.
Motor Oil Heat Dissipation Test
Each oil is a full synthetic 5W-30, starting at room temperature. The results of the test are after one minute.
- – 163F
- Castrol – 165F
- Pennzoil – 176F
- Amazon Basics – 176F
- Motorcraft – 180F
- Amsoil – 226F
- Mobil 1 – 324F
- Super Tech – 330F
- Royal Purple – 349F
Valvoline and Castrol take a clear win against the rest of the competition, with Valvoline edging in front of Castrol.
Motor Oil Evaporation Test
The parameters are the same as before, 1 minute on the heater, 10W-30 full synthetic oils. The following results show how many ounces the oil has lost from its original before the test.
- Castrol – 0
- Amsoil – 0
- Valvoline – 0.1
- Pennzoil – 0.1
- Mobil 1 – 0.1
- Amazon Basics – 0.1
- Royal Purple – 0.2
- Super Tech – 0.2
- Motorcraft – 0.3
Here, Castrol and Amsoil take the win with no oil evaporation at all. Valvoline, on the other hand, lost 0.1 ounces after one minute.
Valvoline vs. Castrol: Friction Test
This test as well was conducted by Nates Interactive Auto. Now, the way these tests work is that we have a rotating metal wheel dipped in motor oil, and it’s constantly grinding against a metal bearing.
So, the better protective film the oil creates, the less damage the metal bearing will sustain, or less material will be missing after the test. The bearings weigh 0.580 ounces, and the closer they are to that weight after the test, the better each motor oil has performed.
In the video, you can also see how much power the motor needs to keep spinning at the same speed. More power equals more friction, which equals a poor protective film.
Another thing you will see is a decibel meter. The point is that the more friction noise the bearing makes, the worse the protective film the oil makes.
One of the shortcomings of this friction test is that the oils are at room temperature. The results would probably be a little different if they were at operating temperatures, and they would be more relevant, but still, it’s a solid test.
Motor Oil Friction Test
Again, the starting weight of the metal bearing is 0.580 ounces, and the following is the weight of the same bearing after the test. Each motor oil is a 5W-30 full synthetic.
- Amsoil – 0.580
- Castrol – 0.579
- Valvoline – 0.579
- Liqui Moly – 0.579
- Mobile 1 – 0.579
- Red Line – 0.578
- Royal Purple – 0.577
- Amazon Basics – 0.577
- Pennzoil – 0.575
- Motul – 0.575
- Super Tech – 0.574
- Motorcraft – 0.569
Amsoil was amazingly impressive in this test as the only oil that didn’t reduce the weight of the bearing. As for other results, Valvoline and Castrol performed the same, and they are sitting right behind Amsoil together with Mobil 1 and Liqui Moly.
Differences Between Valvoline and Castrol Engine Oil
When comparing Valvoline and Castrol engine oils, consider several key differences.
- Company history and global presence
- Product offerings
- Base oil formulation
- Additive technologies
- Drain interval recommendations
- Temperature performance
- Specializations
- Fuel efficiency emphasis
- Price comparison
#1. Company History and Global Presence.
Valvoline, with over 150 years of experience, has established itself as a trusted brand in the automotive lubricant industry. It currently holds the third position in car motor oil branding in the U.S.
On the other hand, Castrol, founded in 1899, operates in more than 40 countries and is a subsidiary of BP. This global presence allows Castrol to cater to a wide range of customers worldwide.
Both Valvoline and Castrol have a long-standing history and have built a strong reputation in the market.
#2. Product Offerings.
Valvoline offers various engine oils, including Premium Conventional, DuraBlend, MaxLife, and SynPower. Each formulation meets specific needs, such as providing enhanced protection, extending engine life, or improving fuel efficiency.
- Valvoline’s Premium Oil suits everyday driving conditions, while DuraBlend combines conventional and synthetic oils for added performance.
- MaxLife is formulated for high-mileage vehicles, reducing oil consumption and preventing leaks.
- SynPower is a fully synthetic oil that offers superior protection and performance.
In contrast, Castrol offers various versions like GTX and Edge, focusing on performance and fuel efficiency. These different formulations cater to different needs, allowing consumers to choose the engine oil that best suits their requirements.
#3. Base Oil Formulation.
Valvoline’s base oil formulation protects engines in extreme conditions. It’s engineered to maintain fuel efficiency throughout the lifespan of the oil. This formulation ensures that the engine is well-protected even in challenging driving situations.
Conversely, Castrol has a distinct base oil formulation focusing on reducing wear and improving fuel economy. This formulation is particularly suitable for high-stress driving conditions, where the engine is subjected to intense pressure and heat.
#4. Additive Technologies.
Valvoline employs the ‘Dual Defense Additive’ technology in select formulations, which focuses on safeguarding the engine against various factors such as heat, wear, and deposits. This technology provides enhanced protection and prolongs the engine’s life.
Meanwhile, Castrol incorporates ‘Fluid Titanium’ technology in its engine oil products. This additive technology improves engine performance and protection by creating a strong protective barrier on critical engine parts.
The ‘Fluid Titanium’ technology helps reduce friction and wear, ensuring smoother operation and improved fuel efficiency.
#5. Drain Interval Recommendations.
Valvoline is typically recommended for oil changes every 3,000 to 4,000 miles, making it suitable for more frequent maintenance. This shorter drain interval ensures the oil is regularly refreshed, providing optimal engine protection and performance.
Contrary to this, Castrol Edge offers a long drain interval recommendation of 15,000 miles. This caters to individuals who prefer extended oil change intervals, reducing the frequency of maintenance.
#6. Temperature Performance.
Valvoline is known for its exceptional performance in extreme temperatures. It has a lower pour point, so it flows more easily in cold weather conditions.
This makes Valvoline a suitable choice for areas with harsh winters or those who frequently operate their vehicles in cold environments.
On the other hand, Castrol has a higher viscosity index and performs better at medium temperatures. This makes it ideal for various climates, including areas with moderate temperatures.
Its ability to maintain viscosity and protect against wear and tear in these conditions makes it a reliable option for many drivers.
#7. Specializations.
Valvoline is renowned for its premium lubricants, earning a top spot in the U.S. car motor oil market. Its specialization is developing high-quality lubricants that provide excellent engine protection, enhanced fuel efficiency, and extended engine life.
Meanwhile, Castrol has established a strong presence in Formula One racing and focuses on delivering customer-friendly products with the support of BP’s extensive resources.
#8. Fuel Efficiency Emphasis.
Valvoline, recommended for gasoline engines, offers 2x to 6x more protection against viscosity breakdown than conventional oils while maintaining fuel efficiency.
This means that Valvoline engine oil can provide better protection for your engine while ensuring optimal fuel consumption.
Alternatively, Castrol engine oil, such as GTX and Edge, is designed to flow well in both high and low temperatures.
It offers sludge protection while also maintaining fuel efficiency. This makes Castrol a reliable option for maintaining engine cleanliness and performance while prioritizing fuel efficiency.
#9. Price Comparison.
Castrol was priced at $24.22, while Valvoline was priced at $36.99 for a 5-quart amount. This means that Valvoline is approximately 53% more expensive than Castrol.
However, these prices may vary depending on the specific product and location. Despite the price difference, both brands offer competitive pricing with minor variations.
Comparison Chart – Valvoline vs. Castrol
You will hardly find the difference between these 2 car engine lubricants. Moreover, you can use them after mixing, which will not cause any harm to your vehicle engine system. It is possible because of their super slick characteristics.
However, the purpose of Valvoline and Castrol engine oil is to protect the engine system by reducing engine stress.
Let’s look at the comparison chart of these 2 popular car engine lubricant brands.
| Valvoline | Castrol |
| Valvoline consists of anti-wear film that prevent breakdown of car engine | Castrol offers 6 times better wear protection than needed by the up-to-date sequence IVA Test I |
| Protect your engine from deposits and sludge | Maximizes engine performance by protecting it from sludge and wear |
| It features antioxidants that fight breakdown of oil during harsh weather | It is designed to resist modern engines stress |
| Valvoline increases the engines life up to 75,000 miles | Maximum warranty coverage is 50,000 miles |
| Vehicle Fitment: BMW, Suzuki, Audi, Toyota, Chevy, Ford , Mini and many more. | Vehicle Fitment: Volkswagen, Toyota, Audi, Toyota, BMW, Mini, Chevy, Suzuki. |
Pros and Cons of Valvoline and Castrol Engine Oils
Valvoline
Pros
Among the advantages of Valvoline is the quality of its products. The company has high-quality lubricants that help reduce friction, and wear of parts and prevent sludge buildup, mainly in the engine.
The brand is also diverse when it comes to its oils. You find lubricants for different purposes, from those of passenger cars to commercial and marine uses.
Cons
The main downside of Valvoline lubricants is their synthetic products. You find that synthetic greases are not suitable for use with diesel and motorcycle engines.
Castrol
Pros
Castrol is very effective, more so in the sporting scene, explaining its long-lasting partnerships with sporting-oriented models like McLaren.
Castrol’s Magnatec technology ensures that the lubricant stays on the parts for a long time, even when not in motion. It helps in preserving the elements, preventing the accumulation of dirt and sludge.
Castrol boasts of a diverse catalog of lubricants, extending to electric vehicles such as transmission e-fluid. There are also marine and aviation products, featuring bio-fuels that are friendly to the environment.
Cons
The downside of Castrol lubricants is the price. While there is not much significant difference between Castrol and Valvoline in cost, the one for Castrol seems more prohibitive.
Factors to Consider When Choosing Engine Oil
Selecting the right engine oil depends on several factors:
#1. Manufacturer’s Recommendations.
Always consult your vehicle’s owner manual for the recommended oil viscosity and specifications.
#2. Driving Conditions.
- City Driving: Frequent stops and short trips may require oils with better deposit control.
- Highway Driving: Consistent speeds may benefit from oils with enhanced oxidation stability.
- Extreme Temperatures: Synthetic oils perform better in extreme hot or cold conditions.
#3. Vehicle Age and Mileage.
High-mileage vehicles may benefit from oils designed to reduce leaks and oil consumption.
#4. Environmental Considerations.
Some oils are formulated to be more environmentally friendly, reducing emissions and improving fuel economy.
FAQs.
Q: Is Valvoline Better Than Castrol?
Valvoline and Castrol are top lubricant brands with a broad market reach. Valvoline is better in some areas, the same as Castrol.
For example, it has the best conventional motorcycle oil suitable for cruisers. On the other hand, Castrol has products that guarantee the engine’s long life, courtesy of Magnatec technology.
Q: Is Valvoline Good Oil?
Valvoline has been a popular brand in the automotive sector, and it has a diverse line of products. Its lubricants are of high quality, assurance of efficiency for your vehicle’s moving parts.
Q: Can I Mix Castrol And Valvoline?
Mixing different oil brands is possible, so long as they are of the exact specifications. If you have Castrol 5w30 oil, mix it with Valvoline 5w30. There will be no problem when it comes to performance.
However, there may be a problem when you mix varying oil types. In this vein, you can mix Castrol and Valvoline without any hitches coming your way.
Q: Which Castrol Oil Is The Best?
Castrol has a broad collection of lubricants, and many are the best in their respective categories in the market. The Castrol EDGE full synthetic oil is an excellent pick under this lubricant brand.
Its versatility is a contributing factor behind its excellence, as you can use it on both new and old vehicle models. The Castrol full synthetic lubricant is additionally clean and highly efficient.
Q: Is Pennzoil Better Than Valvoline?
Pennzoil is an American lubricant brand that has been in the industry for over a century. Pennzoil vs. Valvoline, which one is better?
Both are top brands that have a decent market share, more so in the United States. It is hard to decide which one is the best, as each has a selling point.
Pennzoil has a strong presence in the Autosport sector, while Valvoline does its best in passenger and commercial vehicles.
Final Word
Lubricants are a must-have commodity for vehicles. They have several functions like reducing friction, cleaning parts, and preventing dirt accumulation.
This article looks at Valvoline vs. Castrol, notable brands that you will see in various auto-product outlets.
Let this piece guide you to the correct item to ensure that your engine and other car parts are in excellent shape.