Castrol EDGE Professional C1 5W30_205L

Castrol EDGE Professional C1 5W-30

Premium Full Synthetic Low-SAPS Engine Oil for Jaguar Land Rover, Ford and Modern Petrol & Diesel Vehicles

Product Overview

Castrol EDGE Professional C1 5W-30 is a premium full synthetic engine oil designed for modern petrol and diesel engines requiring a low-viscosity, low-SAPS SAE 5W-30 lubricant with ACEA C1 performance. It is part of the Castrol EDGE Professional range, developed for high-performance engines operating under pressure, heat, stop-start traffic, highway driving and demanding service conditions.

Modern engines are built with tighter tolerances, higher operating temperatures, turbocharging, direct injection and advanced exhaust after-treatment systems. These engines require an oil that can flow quickly on start-up, maintain strong oil film protection under load, reduce friction, control deposits and protect sensitive emission systems. Castrol EDGE Professional C1 5W-30 is formulated to meet these requirements, helping maintain engine performance, cleanliness and efficiency throughout the service interval.

This oil is particularly suitable for selected Jaguar Land Rover applications requiring STJLR.03.5005 and for selected Ford vehicles requiring Ford WSS-M2C934-B type performance. It is also suitable for petrol and diesel engines where the manufacturer recommends an SAE 5W-30 oil meeting ACEA C1 or ACEA C2 requirements. Its low-SAPS formulation helps support Diesel Particulate Filter protection by reducing ash build-up, while its full synthetic formulation provides excellent resistance to oxidation, viscosity breakdown and high-temperature stress.

The Professional version of Castrol EDGE is designed for workshop and dealer-level servicing, giving vehicle owners and service centres a high-quality lubricant suitable for engines where the correct C1 specification is essential. It is a strong choice for workshops servicing Jaguar, Land Rover, Ford and other compatible vehicles that require a fuel-efficient, low-ash 5W-30 oil.

Specifications & Approvals

Castrol EDGE Professional C1 5W-30 is suitable for use where the following specifications or performance levels are required:

Specifications and Performance Levels

• SAE 5W-30
• ACEA C1
• ACEA C2, where specified and suitable
• Jaguar Land Rover engine oil specification STJLR.03.5005
• Meets Ford WSS-M2C934-B
• Full synthetic engine oil
• Low-SAPS formulation
• Suitable for selected petrol and diesel engines
• Suitable for selected Diesel Particulate Filter equipped vehicles

Recommended Vehicle Applications

Castrol EDGE Professional C1 5W-30 may be suitable for selected vehicles from:

• Jaguar
• Land Rover
• Ford
• Mazda and other vehicles where ACEA C1 / C2 5W-30 is specified
• Petrol and diesel passenger cars requiring low-SAPS SAE 5W-30 engine oil

Always check the vehicle owner’s manual, service guide or manufacturer lubricant recommendation before use. This product should not be used where the vehicle requires a different ACEA category, such as ACEA C3, C4, C5, A3/B4 or a manufacturer-specific approval not listed for this oil.

Key Features & Benefits

1. Full Synthetic Engine Protection

Castrol EDGE Professional C1 5W-30 is formulated using full synthetic technology to provide stable lubrication across a wide temperature range. Full synthetic oils are designed to resist oxidation, maintain viscosity and deliver consistent protection during cold starts, hot running and extended service conditions.

2. Low-SAPS Formulation for Emission System Protection

Vehicles fitted with Diesel Particulate Filters require oils with controlled sulphated ash, phosphorus and sulphur levels. Castrol EDGE Professional C1 5W-30 is formulated as a low-SAPS oil to help reduce ash accumulation and support the long-term operation of compatible after-treatment systems.

3. ACEA C1 Performance

ACEA C1 oils are designed for modern low-emission engines requiring low-friction and low-SAPS performance. This makes the product suitable for specific European and manufacturer applications where fuel economy, after-treatment compatibility and engine protection are all required.

4. Jaguar Land Rover STJLR.03.5005 Suitability

This oil is suitable for selected Jaguar and Land Rover vehicles requiring STJLR.03.5005 5W-30 engine oil. These engines require the correct low-SAPS specification to maintain protection, performance and emission system compatibility.

5. Ford WSS-M2C934-B Suitability

Castrol EDGE Professional C1 5W-30 is also suitable for selected Ford vehicles requiring WSS-M2C934-B type performance. This makes it a practical product for workshops servicing compatible Ford diesel and petrol vehicles requiring this specific oil category.

6. Helps Reduce Friction Under Pressure

Castrol EDGE technology is designed to reduce friction between moving engine parts, especially under high-pressure conditions. This supports engine response, efficiency and long-term protection in modern engines that place high stress on lubricants.

7. Excellent Wear Protection

The oil provides a strong lubricating film to protect engine components including camshafts, bearings, pistons, rings, turbocharger bearings and valve train parts. This helps reduce wear during start-up, high-load operation and stop-start driving.

8. Engine Cleanliness and Deposit Control

Modern engines can suffer from deposit formation due to high operating temperatures, short trips, fuel dilution and extended drain intervals. Castrol EDGE Professional C1 5W-30 helps control sludge and deposits, supporting clean oilways, piston cleanliness and reliable engine performance.

9. Suitable for Turbocharged Engines

Turbocharged engines place significant thermal stress on lubricants. This oil is designed to resist heat-related breakdown and protect turbocharger components when used in suitable vehicles requiring this specification.

10. Fuel-Efficient 5W-30 Viscosity

The SAE 5W-30 viscosity grade helps reduce internal friction compared with heavier oils while still providing the required film strength for compatible engines. This supports fuel efficiency and smooth engine operation.

Applications

Castrol EDGE Professional C1 5W-30 is suitable for:

• Selected Jaguar vehicles requiring STJLR.03.5005
• Selected Land Rover vehicles requiring STJLR.03.5005
• Selected Ford vehicles requiring WSS-M2C934-B
• Petrol engines requiring ACEA C1 or C2 SAE 5W-30 oil
• Diesel engines requiring ACEA C1 or C2 SAE 5W-30 oil
• Vehicles fitted with Diesel Particulate Filters where ACEA C1 is specified
• Passenger cars, SUVs and light commercial vehicles
• Workshop servicing and dealer-level maintenance
• Vehicles requiring low-SAPS 5W-30 engine oil

Typical Driving Conditions

• Daily commuting
• Stop-start city driving
• Highway use
• Long-distance travel
• Family SUVs and 4WD road use
• Fleet and workshop servicing
• Mixed urban and rural operation
• Vehicles operating with modern emission systems

Important Suitability Note

Castrol EDGE Professional C1 5W-30 must only be used where the vehicle manufacturer specifies this viscosity and performance level. It is not a universal 5W-30 oil. Many modern vehicles require ACEA C3, C4, C5, API SP, ILSAC GF-6, Dexos or other manufacturer-specific oils. Always confirm compatibility before use.

Typical Physical Properties

Typical values are provided as a guide only and may vary slightly depending on production batch, region and manufacturer updates.

Handling & Storage Advice

• Store containers in a clean, cool, dry and well-ventilated area.
• Keep container sealed when not in use to prevent contamination from dust, dirt, moisture or other fluids.
• Use clean dispensing equipment, funnels and pumps when filling engines.
• Always confirm the vehicle manufacturer’s recommended viscosity and specification before use.
• Do not mix with oils of unknown specification unless compatibility has been confirmed.
• Avoid using this product in vehicles requiring ACEA C3, C4, C5 or manufacturer-specific approvals not listed for this oil.
• Avoid prolonged or repeated skin contact with used or new engine oil.
• Wear suitable gloves during oil changes and workshop handling.
• Clean spills immediately to reduce slip hazards and prevent environmental contamination.
• Prevent oil from entering drains, waterways or soil.
• Dispose of used oil, oil filters and empty containers through an approved waste oil collection or recycling service.
• Refer to the product Safety Data Sheet for complete health, safety and first-aid information.

Advantages for Workshops, Vehicle Owners and Fleet Operators

Castrol EDGE Professional C1 5W-30 is a strong choice for workshops servicing vehicles that require a precise low-SAPS ACEA C1 5W-30 engine oil. Because many Jaguar Land Rover and selected Ford applications require specific oil chemistry, using the correct product is essential for engine protection, emission system life and service reliability.

For vehicle owners, this oil helps maintain smooth engine operation, strong wear protection and clean internal components. For workshops, it provides a premium recognised brand product that can be confidently offered for compatible vehicles requiring STJLR.03.5005, Ford WSS-M2C934-B or ACEA C1 / C2 5W-30 performance.

The full synthetic formulation offers better stability than conventional oils, especially in demanding driving conditions such as repeated short trips, heavy traffic, hot weather and long-distance motorway use. Its low-SAPS design also supports after-treatment system compatibility, making it suitable for selected diesel vehicles fitted with Diesel Particulate Filters.