Product Description

Castrol POWER1 RACING 4T 5W-40 is a full synthetic 4-stroke motorcycle engine oil designed for high-performance sport bikes, superbikes, high-revving motorcycles and demanding road or track riding. Key applications include high-performance 4-stroke motorcycle engines, wet-clutch systems and motorcycles requiring SAE 5W-40 and JASO MA2 performance. Its Castrol TRIZONE Technology™ is engineered to provide protection for the engine, clutch and gearbox, while the low-viscosity 5W-40 formulation supports rapid oil circulation and reliable lubrication during high-speed operation.

POWER1 RACING 4T 5W-40 is formulated with Castrol's advanced full synthetic technology for motorcycles where strong engine protection and high-temperature performance are required. It is particularly suited to riders who operate motorcycles at high engine speeds and under demanding acceleration and load conditions.

Product Type

• Full Synthetic Motorcycle Engine Oil
• SAE 5W-40
• 4-Stroke Motorcycle Oil
• High-Performance Motorcycle Lubricant
• Wet-Clutch Compatible Engine Oil
• Engine, Clutch & Gearbox Lubricant

Specifications & Performance

• SAE 5W-40
• API SN
• JASO MA2

Castrol specifies POWER1 RACING 4T 5W-40 for applications requiring JASO MA2 performance.

JASO MA2

JASO MA2 is particularly relevant to motorcycles using a common oil bath for the engine, wet clutch and transmission, where the lubricant must provide suitable friction characteristics for reliable clutch engagement.

Typical Properties

Typical values are provided for guidance and may vary slightly between batches. Always refer to the latest Castrol PDS for the current product specification.

Key Benefits

High-Performance Engine Protection

• Full synthetic formulation
• Excellent protection for high-revving motorcycle engines
• Strong high-temperature performance
• Helps protect against wear under demanding operating conditions

TRIZONE Technology™

Castrol's TRIZONE Technology is designed to protect three critical areas:

Engine → Clutch → Gearbox

This is particularly important for motorcycles where one lubricant may simultaneously lubricate the engine, wet clutch and transmission.

High-Speed Performance

• Suitable for high-RPM operation
• Rapid oil circulation during start-up
• Strong lubricating film at elevated temperatures
• Helps maintain engine and transmission protection during aggressive riding

Wet-Clutch Compatibility

The JASO MA2 performance level makes the oil suitable for many motorcycles equipped with wet clutches, where correct friction behaviour is essential for smooth and reliable clutch operation.

Applications

• Sport motorcycles
• Super sport motorcycles
• High-performance motorcycles
• High-revving 4-stroke motorcycles
• Street motorcycles
• Motorcycles with wet clutches
• Motorcycles requiring JASO MA2
• Demanding road riding
• Track-oriented motorcycle applications where the manufacturer specifies SAE 5W-40

Always follow the motorcycle manufacturer's specified viscosity and performance requirements.

Store in the original sealed container in a clean, dry location away from excessive heat, moisture and direct sunlight. Keep the container tightly closed when not in use.

Avoid contamination with water, fuel, dirt or other lubricants.

Health & Safety

Avoid prolonged or repeated skin contact. Wear suitable protective gloves when handling the lubricant. Used motorcycle oil may contain combustion contaminants and should be handled appropriately.

Refer to the latest Castrol Safety Data Sheet (SDS) for detailed handling, storage, first-aid and disposal information.