Castrol Vs Valvoline – All Motor Oils Compared

Among the major brands of engine lubricants around the world, Castrol and Valvoline are considered to be two major giants in the field of manufacturing highly efficient, purely synthetic, and reliable engine oils.

There are several areas where one of them has an advantage over the other, even though both of them guarantee premium engine oils, high engine performance, and trustworthiness for contemporary engines.

Let’s examine the data and draw a conclusion on which of the two brands, Castrol or Valvoline, you should select.

Lets start off with a quick comparison table:

IndustryPetroleumChemical manufacturing and distribution
Parent CompanyBP (British Petroleum)Ashland Inc.
Formerly known asCC Wakefield & CompanyContinuous Oil Refining Co.
Founder (s)Charles WakefieldJohn Ellis
Founded9 March 1899September 6, 1866
HeadquartersPangbourne, Berkshire, UKLexington, Kentucky, USA
Area ServedWorldwideWorldwide
Key PeopleMandhir Singh (CEO)Sam Mitchell (CEO) Mary Meixelsperger (CFO)

Both rival companies produce a wide range of engine oils for multiple applications.

Let’s examine the comparison of a few popular engine oils by both competitors to get a good comparative study.

Castrol Edge Vs Valvoline Full Synthetic SynPower

These opponents are entirely synthetic engine oils created especially for gasoline-based lubricating oil, but Edge is more concerned with decreasing internal engine wear and tear, whereas its rival is more concerned with providing greater sludge removal capabilities. ILSAC GF-5 & API SN criteria are met and exceeded by both of them.

When it comes to engine oil’s ability to withstand high temperatures, Edge excels above its rival. Because it lasts far longer in extremely high temperatures.

But it’s the SynPower that retains its flowing characteristics in cold weather.

Edge takes the initiative when discussing engine protection from a wear and corrosion perspective and offers top-notch engine protection.

However, it also damages engines’ catalytic converters, which puts it behind its rival in this situation.

In light of this, SynPower would work better with the catalytic converter.

By providing longer drainage intervals, Edge would take the lead in this category, which suggests that Edge will have fewer oil changes than its rival.

SynPower prides itself on offering effective engine cleaning and exceptional sludge removal capabilities. However, it falls short of its rival in terms of greater anti-foaming facilities.

The Edge costs somewhat more than its competitor due to its improved features and better qualities.

CharacteristicsCastrol EdgeValvoline SynPower
Anti-wear ProtectionHighModerate
Catalytic Converter CompatibilityHighModerate
Sludge Removal CapabilityLowHigh
Anti-foaming abilityHighModerate
High-Temperature EnduranceHighHigh – Moderate
Cold Temperature EnduranceModerateHigh
Oil Drainage IntervalHighLow
PriceHighHigh – Moderate

For a thorough comparison of Castrol Edge and Valvoline Full Synthetic SynPower, click here.

Castrol GTX High Mileage Vs Valvoline VR1

Both the contenders are formulated for gasoline-powered automobile engines but Castrol GTX is a synthetic blend while its competitor is full synthetic engine oil.

Castrol GTX meet the latest ILSAC GF-6 and API SN standard while its competitor meets the inferior API SM and ILSAC GF-5 standards.

While Valvoline VR1 has significantly better anti-wear capabilities than its rival, it lags behind when it comes to catalytic converter compatibility.

Consequently, Castrol GTX would be more compatible with and less harmful to catalytic converters. Also, it is relatively more protective against oil burn-off.

By minimizing sludge development and neutralizing acid formation within an engine, GTX would last longer because of its high TBN value.

When it comes to performance under a high-temperature environment, both competitors would perform well and protects the engine from failure due to excessive heat.

But GTX would slightly be better than the Valvoline VR1 in this category.

Having improved sludge removing ability, longer drainage intervals, and meeting the latest standards makes GTX relatively more expensive.

CharacteristicsCastrol GTX High MileageValvoline VR1
Anti-wear ProtectionLowHigh
Catalytic Converter CompatibilityHighLow
Sludge Removal CapabilityHighLow
High-Temperature EnduranceHighModerate – High
Oil Drainage IntervalHighModerate
PriceHighHigh – Moderate

For a thorough comparison of Castrol GTX High Mileage and Valvoline VR1, click here.

Castrol GTX High Mileage Vs Valvoline MaxLife High Mileage

Made from a synthetic blend, both competitors are manufactured for gasoline and diesel engines having more than 75,000 miles in their odometers.

Both of them meet the ILSAC GF-6 standard but MaxLife takes the lead as it meets the latest API SP standard while its competitor meets the inferior API SN standard. And that’s the reason for MaxLife’s high fuel efficiency.

Despite being a less fuel-efficient fuel, Castrol GTX is known for its longer drainage intervals. Its sludge-removing ability is also equivalent to its comparison.

But lacks behind Valvoline MaxLife when it comes to engine wear protection.

Castrol GTX’s Phosphorous Replacement Technology makes it relatively more compatible with the catalytic converter.

During high-temperature regions or engine heat up, GTX would perform exceptionally well. And that’s why its oil burn-off protection would be better than its competitor.

The cost of GTX would surely rise as expected since it delivers performance in a high-temperature environment, better anti-wear facility, quality cleaning, and longer drainage intervals.

CharacteristicsCastrol GTX High MileageValvoline MaxLife High Mileage
Formulation TechnologyPhosphorous Replacement TechnologyInnovative MaxLife Technology
Oil Burn-off protectionHighHigh – Moderate
Anti-wear ProtectionModerateHigh
Catalytic Converter CompatibilityHighLow
Sludge Removal CapabilityHighHigh
Fuel EconomyLowHigh
High-Temperature EnduranceHighHigh – Moderate
Oil Drainage IntervalHighModerate – High
PriceHighModerate – High

For a thorough comparison of Castrol GTX High Mileage and Valvoline MaxLife High Mileage, click here.


Both organizations provide highly effective and efficient engine oil oils for automobiles, there is no denying that.

Additionally, their items are categorized into several groups depending on each of their unique qualities and benefits.

Meaning that two products by the same manufacturer could have different attributes based on their manufacturing intent.

For example, Castrol Edge serves the purpose of delivering premium wear protection to engines in a resilient environment, while on the other hand, Castrol GTX High Mileage is designed to offer longer drainage intervals.

So it all comes down to personal preference when it comes to choosing an engine oil.

Even though both competitors are quite reputable when it comes to engine oils, they do have their distinctive pros and cons.

By analyzing the contest between some popular Castrol and Valvoline engine oils, we have come to the conclusion that Castrol is relatively costlier than its competitor.

And the reason behind it is its relatively longer drainage intervals and better performance in a high-temperature environment.

While on the other hand, it is being observed that Valvoline offers better sludge protection to engines along with premium wear protection in cold weather environments.