Motorcycle engine oil designed to balance acceleration, protection and cooling for 4-stroke machines. Riders who cover long miles or commute daily gain smoother running and more consistent performance. Is Castrol POWER1 ULTIMATE Motorcycle Oil the right choice for your 4-stroke bike and riding style?
⚡ At a Glance
- • Engine Performance: Improved throttle response and sustained high-rpm stability
- • Best for: Owners of 4-stroke motorcycles specifying JASO MA/MA2 or API SN oils
- • Not ideal for: Two-stroke engines or machines requiring different oil specifications
A 1-litre 10W-40 motorcycle oil meeting API SN and JASO MA2 standards. Suitable for carburettor and fuel-injected 4-stroke bikes and compliant with catalyst-equipped engines.
Sharper acceleration – Thanks to the 5-in-1 formula
The five-in-one formulation targets multiple performance areas, with acceleration explicitly called out by the manufacturer; actual gains depend on riding style and viscosity grade. The formula is intended to reduce internal friction and help throttle response across typical operating ranges.
Noticeable roll-on response and crisper pick-up for many riders, especially during overtakes and mid-corner acceleration.
Reliable engine protection – With API SN and JASO MA2 compliance
API SN and JASO MA2 are specified performance standards listed by the manufacturer, indicating suitability for modern petrol engines and wet-clutch compatibility. Those standards relate to wear control, deposit management and clutch performance where a wet clutch is present.
Reduced wear and consistent lubrication under load help preserve engine internals and maintain clutch feel during everyday use.
Cooler running on long rides – With formulation for enduring performance
Enduring performance and cooling on extended journeys are identified among the five performance areas; formulation stability supports sustained operation at higher temperatures. The oil is designed to maintain viscosity and performance over long-distance use.
Stable operating temperatures and sustained oil performance give confidence on longer trips and touring duties.
✨ The 4 Key Reasons for Castrol POWER1 ULTIMATE Motorcycle Oil
- 5-in-1 formula – Delivers acceleration, protection, smoothness and sustained cooling performance
- 10W-40 viscosity – Performs across varied temperatures for many riding conditions
- 1-litre pack size – Practical for a single oil change and easy storage
- Catalyst compatible – Safe for bikes with catalytic converters and emissions systems
📋 Technical Details at a Glance
- Category: Motorcycle oil
- Brand: Castrol
- Viscosity: 10W-40
- Volume: 1 litre
- Performance Specifications: API SN, JASO MA2
❓ Frequently Asked Questions
Q: Is this oil suitable for my 4-stroke motorcycle?
A: Yes, suitable for all makes of 4-stroke bikes, carburettor or fuel-injected, where JASO MA or MA2 are recommended.
Q: Can this oil be used in bikes with catalytic converters?
A: Yes, the formulation complies with requirements for catalyst equipped engines as stated by the manufacturer.
Q: How should the oil be stored?
A: Store under cover and avoid exposing packages to temperatures above 60°C, hot sun or freezing conditions; lay drums horizontally if outside to prevent water ingress.
🏆 Our Verdict
Suited to riders of 4-stroke motorcycles who want dependable protection, crisper throttle response and stable long-ride performance. The five-in-one formula combined with API SN and JASO MA2 compliance delivers balanced acceleration, clutch compatibility and cooling for extended use. Durable protection and consistent performance should repay the purchase through prolonged engine life and fewer concerns on long journeys.
