Castrol POWER1 ULTIMATE 4T 10W-40 Motorcycle Oil (1L) with Brake Cleaner — specifications and compatibility
Product/quantity: 1L. Grade: 10W-40. Confirm the selected pack variant before checkout.
Verified technical specification / approvals
API SP; JASO MA2; fully synthetic four-stroke motorcycle engine oil.
Vehicle and engine suitability
Selected four-stroke motorcycles using a wet clutch and specifying 10W-40 JASO MA2, including some Honda, Yamaha, Suzuki, Kawasaki and Triumph models. No car fitment; check bike model/year and clutch requirements.
Fitment check: A vehicle model appearing above does not guarantee compatibility. Confirm vehicle make, model, year, engine code, fuel system and OEM oil specification using the owner's manual or Castrol Oil Finder. Oil fill capacities and service intervals vary by engine; follow manufacturer instructions.
Common UK search terms
Castrol POWER1 ULTIMATE 4T 10W-40 Motorcycle Oil (1L) with Brake Cleaner, Castrol 10W-40 oil UK, engine servicing, motor oil specifications, genuine Castrol 10W-40, car oil compatibility.
Castrol Power 1 Ultimate 4T 10W-40 1L & Fast-Acting Brake Cleaner Bundle
Castrol Power 1 Ultimate 4T 10W-40 1L: Castrol POWER1 Ultimate 4T is specifically designed for bikers who love the exhilaration of riding on the edge. Castrol POWER1 Racing is a fully synthetic engine oil. Castrol POWER1 Racing incorporates Race Derived Technology developed by Castrol’s long and successful racing association by working with the world’s leading racing teams for over five decades.



This fully synthetic engine oil flows fast and stays strong, reducing internal engine friction even under the most arduous riding conditions. It has been tested and proven to deliver exceptional acceleration and power at the touch of the throttle. Castrol ensures uncompromised performance protection, its ultimate performance for extreme riding.
Features:
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Ultimate performance in extreme riding – oil flows fast and stays strong, reducing internal engine friction
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Tested and proven to deliver exceptional acceleration at the touch of the throttle
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Fully synthetic 4-stroke motorcycle engine oil with protection of the engine, clutch, and gears
- Complies with requirements of catalyst-equipped engines
Specifications / Industry Standards:
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API SN
- JASO MA-2
Storage: All packages should be stored under cover. Where outside storage is unavoidable, drums should be laid horizontally to avoid the possible ingress of water and damage to drum markings. Products should not be stored above 60°C, exposed to hot sun, or freezing conditions.
Fast-Acting Brake Cleaner 500ml: Low volatility, non-staining brake cleaner



Metallic parts degreaser and brake cleaner in an aerosol spray for workshop use. Has a hydrocarbon and IPA-based formulation that is free from chlorinated or halogenated hydrocarbons.
Application: Helps remove dirt, oil, grease, and residues from metallic parts and brakes during car service, repair, and maintenance.
Directions for use:
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Check plastic and paint compatibility before use.
- Spray cleaner onto the parts and leave to work for a short period.
Bundle Includes:
- 1x Castrol Power 1 Ultimate 4T 10W-40, 1L
- 1x Fast-Acting Brake Cleaner, 500ml