Silkolene Pro 4 10W-40 XP 1L – Ester-Based Fully Synthetic Motorcycle Engine Oil (JASO MA2 / API SN)

Experience superior engine protection and performance with Silkolene Pro 4 10W-40 XP, a high-performance ester-based fully synthetic motorcycle engine oil engineered for modern 4-stroke engines. Designed to meet the demands of both everyday riders and high-performance applications, this advanced lubricant delivers exceptional protection, improved throttle response, and long-lasting reliability in all riding conditions.

Formulated using cutting-edge ester technology, Silkolene Pro 4 XP provides enhanced oil film strength, reduced friction, and outstanding resistance to thermal breakdown. Whether you're commuting, touring, or pushing your bike on spirited rides, this premium oil ensures your engine stays protected and performs at its best.

Advanced Ester Technology for Maximum Protection

Unlike conventional and semi-synthetic oils, ester-based formulations offer superior adhesion to engine components. This means that even during cold starts—when most engine wear occurs—Silkolene Pro 4 XP maintains a protective film on critical parts.

This results in:

• Reduced metal-to-metal contact
• Lower engine wear over time
• Improved lubrication during start-up and high-load conditions
• Enhanced engine cleanliness with fewer deposits and sludge build-up

Optimised for High-Performance 4-Stroke Motorcycles

Silkolene Pro 4 10W-40 XP is specifically designed for use in modern 4-stroke motorcycle engines, including both air-cooled and liquid-cooled systems. Its balanced formulation ensures consistent performance across a wide temperature range, making it suitable for UK riding conditions all year round.

Perfect for:

• Sports bikes
• Naked bikes
• Touring motorcycles
• Commuter bikes
• High-revving performance engines

Smooth Gear Changes & Wet Clutch Compatibility

This oil is fully compatible with motorcycles that use a combined engine, gearbox, and wet clutch system. Thanks to its JASO MA2 approval, it provides optimal friction characteristics to ensure:

• Smooth and precise gear shifts
• Consistent clutch engagement
• Reduced clutch slip under acceleration
• Improved riding comfort and control

Consistent Performance Across All Temperatures

The 10W-40 viscosity grade ensures excellent performance in both cold and hot conditions:

• 10W (Winter Rating): Provides fast oil circulation during cold starts, reducing wear and improving engine start-up performance
• 40 (Operating Temperature): Maintains stable viscosity at high temperatures, ensuring reliable protection during long rides or high-speed use

This makes it one of the most versatile and widely recommended oil grades for motorcycles.

Outstanding Engine Cleanliness & Longevity

Silkolene Pro 4 XP contains advanced detergents and dispersants that help keep your engine clean by preventing the build-up of harmful deposits. A cleaner engine not only performs better but also lasts longer.

Benefits include:

• Reduced carbon and sludge formation
• Cleaner internal engine components
• Improved combustion efficiency
• Extended engine life

Technical Specifications

• Product Name: Silkolene Pro 4 10W-40 XP
• Oil Type: Fully Synthetic (Ester-Based)
• Viscosity Grade: 10W-40
• JASO Approval: MA2
• API Specification: SN
• Engine Compatibility: 4-Stroke (Air & Water Cooled)
• Bottle Size: 1 Litre

When Should You Change Your Motorcycle Oil?

Regular oil changes are critical to maintaining engine health and performance. It is recommended to replace your oil:

• At manufacturer-recommended service intervals
• After extended high-performance riding
• If oil appears dark, dirty, or degraded
• When experiencing rough engine performance or poor gear shifting

Using a high-quality oil like Silkolene Pro 4 XP ensures your engine stays protected between service intervals.

Why Choose Silkolene Oil?

Silkolene is a globally recognised brand known for producing high-performance lubricants used in both road and racing environments. Their oils are developed using advanced research and tested under extreme conditions to deliver consistent, reliable performance.

Why Buy From Rides R Us?

• Genuine, high-quality motorcycle oils and lubricants
• Competitive UK pricing
• Fast and reliable dispatch
• Trusted by workshops and riders nationwide
• Expert advice available for servicing and maintenance