Product Description
Castrol POWER1 Cruise 15W-50 is premium full synthetic technology oil specifically formulated for cruiser motorcycles that face high-heat and long-distance riding conditions. The 2.5L volume is the exact refill requirement for the Royal Enfield UCE (Classic/Bullet/Thunderbird), making it a “complete fill” solution.
The API SP rating (the current gold standard for 2026) means this oil is engineered to handle modern engine challenges better than older SN-rated oils. It features Power Sustain Technology™, which manages heat and friction to ensure sustained power delivery even during extended highway cruises. By sticking to engine parts and resisting oxidation, it prevents the engine from feeling “sluggish” after hours of riding, keeping your acceleration crisp and your gear shifts smooth.
Key Features:
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API SP Certified: The latest industry standard, providing superior protection against timing chain wear and high-temperature deposits compared to API SN.
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Power Sustain Technology™: Effectively manages heat and friction, preventing power loss during long-distance or high-load riding.
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Full Synthetic Technology: Offers 14% better oxidation resistance and 5% more power than leading competitors.
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Exact 2.5L Sump Fill: Designed specifically for Royal Enfield 350cc/500cc UCE engines to ensure no wastage and a perfect level.
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JASO MA2 Compliance: Delivers the perfect friction coefficient for wet clutches, eliminating slippage and ensuring smooth gear transitions.
Technical Specifications:
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Brand: Castrol
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Viscosity: 15W-50
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Oil Type: Full Synthetic Technology
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API Standard: API SP (Latest 2026 Standard)
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JASO Standard: JASO MA2
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Net Quantity: 2.5 Litres
Vehicle Compatibility:
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Royal Enfield Classic 350 / 500 (UCE Engine)
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Royal Enfield Bullet 350 / 500 (Standard, Electra, ES)
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Royal Enfield Thunderbird 350 / 500
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Royal Enfield Himalayan 411 (Check specific volume; usually requires 2L)
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Note: While compatible with older engines, this is a premium upgrade specifically recommended for riders who frequently travel long distances or operate in high-temperature environments.








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