Purpose and Specifications

Eurol Harley Twinlube-FS 20W-50 1L is a fully synthetic engine oil designed specifically for rugged Harley-Davidson V-Twin motorcycles from 1984 and up (excluding V-Rod models). This budget-friendly oil from Netherlands-based manufacturer Eurol works as a versatile all-in-one lubricant for your engine, primary chaincase, and transmission, making maintenance simple and effective.

It delivers superior wear protection against deposits, sludge, and oxidation, even under extreme touring, racing, or long-distance conditions. The 20W-50 viscosity flows smoothly at cold starts down to -42°C for quick engine protection, while staying thick at high temps over 200°C to maintain a strong lubricant film during heavy loads. Low volatility cuts oil burn-off, reducing top-ups and keeping your ride reliable for up to 10,000 km or 12 months between changes.

• Meets API SJ, JASO MA, JASO MA2 specs for wet clutches - no slipping or sticking
• Prevents foaming and air bubbles in tough conditions
• 2-year shelf life unopened

When to Use / Replace?

Use this oil in air-cooled Harley engines for everyday riding, hot summer cruises above 30°C, or cold mornings below 0°C. Ideal for high-mileage bikes needing robust gearbox and clutch protection. Replace every 8,000-12,000 km or annually during routine service to avoid sludge buildup and ensure peak performance.

Perfect for owners seeking affordable, high-quality synthetic protection without friction modifiers that could harm clutch grip.

FAQ

Is Eurol Harley Twinlube-FS safe for my wet clutch?
Yes, its JASO MA/MA2 rating ensures smooth shifting and no clutch slip in primary or transmission use.

What temps does it handle?
Flows at -42°C for winter starts, holds up over 200°C for hot track days or traffic jams.

How often should I change it?
Every 8,000-12,000 km or 12 months - check level monthly and top up as needed.