Castrol and Mobil 1 are among famous brands when it comes to reliable, purely synthetic, and efficient engine oils. Before we dive into the discussion of which one is better among the contenders, let’s have a look at a brief introduction of our competitors.
Castrol is a British oil company that makes and markets a wide range of automotive and industrial lubricants along with grease and similar products.
In 1899, Charles “Cheers” Wakefield established Castrol underneath the name “CC Wakefield & Company.”
In 1906, the company launched its first engine oil. Researchers from Wakefield discovered that a small amount of castor oil, a vegetable oil manufactured from castor beans, worked well as a supplement.
The new item was given the name “Castrol.” In order to keep up with changes in mobility, sustainability, and digitalization, Castrol is currently creating and trying out new products and business strategies.
Introduced in 1974 by its parent organization Mobil brand, Mobil 1 is a company of synthetic motor oils and other automotive lubrication products.
After its launch in the USA, it established a new set of rules and standards for synthetic engine oils.
It is actually a successor of Mobil Oil Brand that merged with Exxon and formed ExxonMobil in 1999.
Initially, Mobil 1 was introduced only as a Multi-grade 5W – 20 viscosity synthetic engine oil, but now it includes multi-grade motor oils, synthetic grease, oil filters, gear lubricants, and transmission fluids.
Table of Contents
Quick Comparison of both these brands:
| Parameter | Castrol | Mobil 1 |
| Industry | Petroleum | Oil and Gas |
| Founder (s) | Charles Wakefield | John D. Rockefeller |
| Founded | 9 March 1899 | 1974 |
| Origin | British | USA |
| Headquarters | Pangbourne, Berkshire, UK | Irving, Texas, United States |
| Area Served | Worldwide | Worldwide |
There is a huge variety of engine oils by both competitors made for different purposes.
To obtain a healthy comparison analysis, let’s have a look at the comparison of some popular engine oils by both contenders.
Mobil 1 Advanced Fuel Economy Vs Castrol Edge
Both competitors are fully synthetic engine oils designed for only gasoline-based engine oils whereas Advanced is more focused on providing enhanced fuel economy, as its name suggests, while its competitor is more focused on delivering optimum wear protection to engines.
Both of them meet and exceed the specification of API SN and ILSAC GF-5.
Talking about engine protection from wear and corrosion, Edge takes the lead and provides premium protection to engines.
But its drawback is that it also harms the catalytic converter of engines and lags behind its competitor in this scenario.
Hence, Advanced would be more compatible with the catalytic converter.
If we talk about the endurance of engine oil in extreme temperature conditions, then fuel economy outclasses its competitor.
Because it lasts comparatively longer in extremely high-temperature environments and also maintains its fluid characteristics longer than its competitor in cold weather.
When it comes to fuel efficiency and drainage interval, Advanced would again take the lead by providing superb fuel efficiency and offers longer drainage interval which means that oil changing frequency will be low.
Again, the Advanced takes superiority in providing efficient engine cleaning and premium sludge removal ability. It also exceeds its competitor in fighting against foaming and deposit building.
Having superior features and qualities makes the Advanced relatively higher in price as well.
| Characteristics | Mobil 1 Advanced Fuel Economy | Castrol Edge |
| Anti-wear Protection | High | Moderate |
| Standards | Equivalent | Equivalent |
| Catalytic Converter Compatibility | Moderate | High |
| Sludge Removal Capability | High | Moderate |
| Anti-foaming ability | Low | High |
| Environmental adaptation ability | Equivalent | Equivalent |
| Fuel Efficiency | High | Moderate |
| High-Temperature Endurance | High | Moderate |
| Cold Temperature Endurance | High | Low |
| Oil Drainage Interval | High | Low |
| Price | High | Moderate |
For a detailed comparison of Mobil 1 Advanced Fuel Economy and Castrol Edge, click here.
Castrol Edge Extended Performance Vs Mobil 1 Annual Protection
Both the contenders are fully synthetic motor oils designed for high-performance passenger cars, SUVs, and light trucks.
Edge is formulated with Titanium Technology for enhanced wear protection while its competitor is made with Anti-Aging Technology which ensures longer drain intervals.
Both the contenders meet the ILSAC GF-6 standard but Edge is taking the lead in the API rating as it meets the latest API SP while its competitor meets the API SN standard.
Both of the contenders are doped with many performance-enhancing additives such as anti-wear additives, engine cleaning detergents, dispersants, anti-oxidants, and anti-foaming agents.
Edge provides a relatively better anti-wear facility than its competitor, but also lacks behind its competitor when it comes to compatibility with the catalytic converters.
Hence Annual Protection would be relatively more compatible and less hazardous to catalytic converters.
Also, Edge is relatively more seal compatible, meaning that it would not allow oil leakage due to the seal being worn out.
Due to its anti-aging technology, Annual Protection would last longer in the engine by reducing the sludge formation and also neutralizing the acid formation inside an engine.
When it comes to performance under a resilient environment, both competitors would perform exceptionally well and protects the engine from seizure situation in cold weather.
They do perform well in a high-temperature environment as well, but they are basically designed for cold weather since their maximum viscosity grade is 5W – 30.
Having low viscosity and Titanium Technology, Edge would surpass its competitor providing more fuel economy. It means that it would consume less fuel to circulate inside an engine.
Having longer drainage intervals, enhanced sludge removing capability, and superior compatibility with the catalytic converter makes the Annual Protection relatively more expensive.
| Characteristics | Castrol Edge Extended Performance | Mobil 1 Annual Protection |
| Formulation Technology | Titanium Technology | Anti-Aging Technology |
| Anti-wear Protection | High | Moderate |
| Standards | High | Moderate – High |
| Catalytic Converter Compatibility | Low | High |
| Sludge Removal Capability | Moderate | High |
| Extreme Temperature Endurance Capability | High | High |
| Fuel Efficiency | High | Moderate – High |
| Oil Drainage Interval | Moderate | High |
| Price | Low | High |
Castrol GTX Magnatec Vs Mobil Super 3000
These contenders are fully synthetic engine oils designed for high-performance gasoline and diesel engines.
Both of them meet the ILSAC GF-6A standard for enhanced engine cleansing but Super 3000 meets the latest API SP standard while its competitor meets the API SN standard.
That’s why it surpasses its competitor in the race for fuel economy.
Despite being a less fuel-efficient fuel, GTX is known for its premium wear protection due to its DUALOCK Technology. Its seal compatibility is also equivalent to its comparison.
But lacked behind Super 3000 when it comes to catalytic converter’s compatibility. GTX’s relatively excessive concentration of phosphorous makes it more hazardous for the catalytic converter.
During high-temperature regions or engine heat up, GTX would perform exceptionally well.
But its competitor would take the lead in the winter environment due to having comparatively low viscosity grades.
The cost of GTX would surely rise as expected since it delivers premium wear protection, quality cleaning, and better endurance in extremely high temperatures.
| Characteristics | Castrol GTX Magnatec | Mobil Super 3000 |
| Oil Burn-off protection | Moderate – High | High |
| Anti-wear Protection | High | Moderate |
| Standards | Moderate | High |
| Catalytic Converter Compatibility | Low | High |
| Sludge Removal Capability | High | High |
| Seal Protection | High | High |
| Fuel Economy | Low | High |
| High-Temperature Endurance | High | Moderate |
| Cold Temperature Endurance | Moderate | High |
| Oil Drainage Interval | Low | High |
| Price | High | Low |
For a detailed comparison of Mobil 1 Advanced Fuel Economy and Castrol Edge, click here.
Castrol Edge Vs Mobil 1 Extended Performance
For enhanced protection and reliability, both competitors are manufactured with synthetic base oils which are entirely made in labs and are claimed to be contamination-free motor oils.
Due to its Titanium Technology, Edge would outperform its competitor in providing wear protection to engines. But the Emission System Protection of Extended Performance would make it more compatible with the catalytic converters than its competitor.
Due to inhibiting anti-oxidants and cleaning detergents, both competitors deliver outstanding cleansing ability and protect the formation of sludge and deposit inside an engine.
Both the contenders meet the latest ILSAC GF-6A standard which implies good fuel efficiency by both contenders.
As the name suggests, Mobil 1 Extended Performance delivers superior mileage meaning that its drainage interval would be longer than its competitor.
It provides up to 20,000 miles of mileage while its competitor delivers up to 15,000 miles.
Long drainage intervals, better compatibility with the catalytic converter, and enhance fuel efficiency make the Extended Performance comparatively pricier than its competitor.
| Characteristics | Castrol Edge | Mobil 1 Extended Performance |
| Anti-wear Protection | High | Moderate |
| Catalytic Converter Compatibility | Moderate | High |
| Sludge Removal Capability | High | High |
| Fuel Efficiency | High | High |
| Oil Drainage Interval | Moderate | High |
| Price | Moderate | High |
For a detailed comparison of Mobil 1 Advanced Fuel Economy and Castrol Edge, click here.
Conclusion
There is no doubt in the fact that both companies provide high-performance and efficient synthetic motor oils for automobiles.
And their products are classified into various categories based on their individual attributes and advantages.
If on one side, Mobil 1 Advanced Fuel Economy focuses on providing better fuel efficiency then there is also the Extended Performance motor oil of the same manufacturer prioritizing longer drainage intervals.
So it all comes to personal preference when choosing among the two contenders since Castrol would be superior in some categories and lack behind in others.
For example, if you are confused between the Castrol Edge Extended Performance and Mobil 1 Annual Protection, and you want to better cleaning for your engine, then the best option would be Annual Protection.
But if your priority is to acquire a motor oil that can protect your engine from wear, then you should go along with the Castrol Edge.
With this example, we can conclude our competition with this narrative that both the competitors provide excellent performance and protection to your engines, and it all comes down to your personal preference and priority.
