Purpose and Specifications

MOTUL 5100 15W-50 4T is a synthetic-based motorcycle engine oil designed for 4-stroke engines in street bikes, off-road motorcycles, ATVs, and similar vehicles. This premium oil combines Technosynthese® technology with ester additives to deliver reliable protection across a wide range of riding conditions.

Key Performance Features:

• Meets API SP and JASO MA2 standards for modern emission systems and clutch performance
• Improved oil film strength at high temperatures—critical for engine durability and preventing wear
• Anti-wear protection for both engine and gearbox components
• Optimized phosphorus and sulfur content to protect catalytic converters
• Smooth shifting and easy cold starts, even in challenging conditions
• Reduces fuel dilution and oil consumption

The 15W-50 viscosity grade is specifically formulated for larger displacement engines (big bore, twins, and multi-cylinder bikes). The 15W rating ensures reliable flow in cold weather, while the 50 rating maintains protective thickness at high operating temperatures (typically 80–100°C in normal riding).

When to Use and Replace?

Oil Change Interval: Replace every 16,000 km or according to your motorcycle manufacturer's recommendations, whichever comes first. Severe riding conditions (racing, frequent short trips, or extreme temperatures) may require more frequent changes.

Suitable For:

• Street and road motorcycles with 4-stroke engines
• Off-road bikes, enduro, and trial motorcycles
• Motorcycles with integrated or separate gearboxes
• Wet or dry clutch systems
• Bikes equipped with catalytic converters or secondary air injection systems
• ATVs, UTVs, and personal watercraft (check manufacturer specs)

Storage: Store in a cool, dry place. Synthetic-based oils typically maintain quality for 3–5 years in sealed containers when stored properly.

Frequently Asked Questions

Q: Can I mix MOTUL 5100 with other oils?
A: Yes, MOTUL 5100 can be mixed with other synthetic or mineral lubricants. However, for best performance, use the same oil brand and grade for top-ups between changes.

Q: Is this oil suitable for my motorcycle with a catalytic converter?
A: Yes. The optimized phosphorus and sulfur content is specifically designed to protect catalytic converters and meet modern emission standards, making it ideal for Euro 2–5 compliant engines.

Q: What does the 15W-50 rating mean for my riding?
A: The 15W ensures the oil flows quickly when you start your bike in cold weather. The 50 rating keeps the oil thick and protective when your engine reaches normal operating temperature. This balance is especially important for larger-displacement engines that run hotter.