Motul 5100 15W‑50 is a semi‑synthetic (Technosynthese®) engine oil enhanced with ester technology, tailored for 4-stroke motorcycles—street, off-road, and dual-sport—as well as ATVs, UTVs, PWCs, and snowmobiles that require a 15W‑50 specification.

Key Features

• Technosynthese® + Ester Blend: Offers a durable lubricating film that resists high-temperature shear and delivers smoother gear protection in integrated gearboxes.

• Wet-Clutch Friendly (JASO MA2 Certified): Optimized for smooth engagement under all riding conditions.

• API SM / SL / … Standards: Meets modern engine protection benchmarks with API SM and higher performance levels.

• Catalytic Converter Safe: Balanced phosphorus and sulfur levels (<1200 ppm) protect after-treatment systems.

• Exceptional Shear & High-Temp Stability: Experimental FZG gear test result of FLS 14 ensures strong protection under extreme conditions.

Specifications

• Viscosity (SAE J300): 15W‑50

• Density @ 20 °C: ~0.867–0.875 g/cm³ 

• Viscosity @ 40 °C: 133–135 mm²/s; @ 100 °C: ~18 mm²/s 

• Viscosity Index: ~150–152

• Pour Point: –30 °C to –33 °C

• Flash Point: ~236 °C – 242 °C

• TBN: ~7.5 mg KOH/g

Use Cases

• Street & Off-Road Motorcycles: From big-bore cruisers and twins to trail/enduro bikes, whether or not they have integrated gearboxes.

• Wet & Dry Clutch Systems: Delivers optimal clutch feel and engagement thanks to JASO MA2 formulation.

• Vehicles with After-Treatment Systems: Safe for catalytic converters and secondary air injection devices.

• ATVs, UTVs, PWCs, Snowmobiles: Suitable where 15W‑50 viscosity is recommended.

Benefits at a Glance

1. Reliable engine & gearbox protection under heat and stress.

2. Consistent shifting feel, even in cold starts or high-load situations.

3. Longer oil drain intervals thanks to high thermal stability (up to 16,000 km depending on OEM guidelines).

4. Emission system safe—balanced additives protect catalysts.

Summary

Motul 5100 15W‑50 is your go-to semi-synthetic motorcycle engine oil for everyday riding, recreational adventures, and any scenario where durability, smooth shifting, wet-clutch compatibility, and after-treatment system safety are essential.