Product Description

Castrol POWER1 ULTIMATE 4T 10W-40 is a full synthetic high-performance motorcycle engine oil for modern 4-stroke motorcycles, sport bikes, high-revving engines and demanding road riding. Key applications include high-performance motorcycles with wet-clutch systems, motorcycles requiring SAE 10W-40 and JASO MA2 performance, and riders seeking strong protection during high-RPM acceleration and demanding operating conditions. Its Castrol 5-in-1 Technology is designed to provide protection against wear, deposits, oxidation, oil breakdown and friction while maintaining performance under demanding motorcycle operating conditions. (castrol.com)

POWER1 ULTIMATE 4T 10W-40 is formulated with full synthetic technology and Castrol's motorcycle-specific additive system. The formulation is designed to provide high-temperature stability and reliable lubrication for engines, transmissions and wet clutches that share the same lubricant.

Product Type

• Full Synthetic Motorcycle Engine Oil
• SAE 10W-40
• 4-Stroke Motorcycle Oil
• High-Performance Motorcycle Lubricant
• Wet-Clutch Compatible Oil
• Engine, Clutch & Gearbox Lubricant

Specifications & Performance

• SAE 10W-40
• API SP
• JASO MA2

The JASO MA2 classification makes the product suitable for many motorcycles where the manufacturer specifies a JASO MA2 wet-clutch lubricant. (castrol.com)

Typical Properties

Where Castrol does not publish a numerical value in the available product information, no value has been estimated.

Key Benefits

1. High-Performance Motorcycle Protection

• Full synthetic formulation
• Excellent protection during high-RPM operation
• Helps reduce engine wear
• Strong high-temperature performance
• Suitable for demanding riding conditions

2. Castrol 5-in-1 Technology

POWER1 ULTIMATE is engineered around five key performance areas:

• Wear protection
• Deposit control
• Oxidation protection
• Oil-film protection
• Friction performance

This technology is designed to maintain lubricant performance during demanding motorcycle operation.

3. Wet-Clutch Compatibility

The JASO MA2 performance level provides suitable friction characteristics for motorcycles using wet clutches.

This is particularly important where the same oil lubricates:

Engine → Wet Clutch → Gearbox

4. High-RPM Performance

Designed for motorcycles that regularly operate at elevated engine speeds and temperatures, including:

• Sport riding
• Rapid acceleration
• High-speed highway riding
• High-RPM operation
• Demanding urban riding

Applications

• Sport motorcycles
• Super sport motorcycles
• Naked motorcycles
• High-performance motorcycles
• 4-stroke motorcycles
• Motorcycles with wet clutches
• High-revving motorcycle engines
• Motorcycle engines requiring SAE 10W-40
• Applications requiring JASO MA2
• Road and performance riding

Always follow the motorcycle manufacturer's recommended viscosity and specification.

Important Compatibility Note

POWER1 ULTIMATE 4T 10W-40 is a motorcycle-specific lubricant. It should not be selected simply because the engine requires an SAE 10W-40 oil.

For motorcycles with a shared engine, transmission and wet-clutch lubrication system, confirm that the manufacturer specifies JASO MA or MA2.

Do not use a JASO MA2 motorcycle oil in an application specifically requiring JASO MB unless the manufacturer permits it.

Storage

Store in the original sealed container in a clean, dry location away from direct sunlight, excessive heat and moisture.

Keep containers tightly closed when not in use and prevent contamination with water, fuel, dirt or other lubricants.

Health & Safety

Avoid prolonged or repeated skin contact. Wear appropriate protective gloves when handling the lubricant.

Used engine oil can contain accumulated contaminants and should be collected and disposed of through an appropriate waste-oil recycling or disposal facility.

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