Purpose and Specifications

Eurol 20W50 Harley 4L is a robust mineral engine oil specially developed for Harley-Davidson motorcycles. It flows easily at cold starts down to -39°C, stays thick and protective up to high engine temps around 200°C, and handles heavy shock loads from powerful V-twin engines. This budget-friendly oil reduces wear, fights corrosion and oxidation, and cuts oil consumption for years of reliable performance. Meets API SG, JASO MA, JASO MA2 standards for wet clutches and engines. 4-liter pack covers full changes on most Harleys.

When to Use / Replace?

Use in air-cooled Harley engines without exhaust catalysts, perfect for daily rides, touring, or hard acceleration. Ideal for operating temps from cold mornings to hot summer runs. Replace every 5,000-8,000 km or 6-12 months, whichever comes first, to keep protection strong. Shelf life is 3-5 years unopened in cool, dry storage.

• Protects against wear in high-heat V-twins
• Smooth wet clutch operation, no slipping
• Low oil burn-off saves money long-term