Purpose and Specifications

Eurol Nautic Line 10W-40 FCW is a premium mineral engine oil designed for 4-stroke inboard and outboard marine engines. It delivers optimal lubrication and strong protection against wear, rust, and corrosion from saltwater exposure.

The 10W-40 viscosity means it flows easily at cold starts down to -33°C for quick protection, while staying thick and stable up to 200°C+ during high-speed runs or heavy loads. Meets NMMA FC-W, API SL, and JASO MA standards for marine reliability.

• Resists fuel dilution from idling, preventing sludge buildup
• Minimizes wear at low and high RPMs
• Maintains performance beyond standard oil change intervals

When to Use / Replace?

Use in outboard and inboard boat engines needing FC-W spec. Ideal for recreational boating, jet skis, and speedboats in fresh or saltwater.

Replace every 100-150 hours of operation or annually (whichever first), or after 12 months shelf life. Check dipstick monthly; change sooner if boating in harsh saltwater or extended idling.

FAQ

Is this oil safe for my outboard motor? Yes, it's specifically formulated for 4-stroke outboards meeting NMMA FC-W, protecting against marine-specific issues like saltwater corrosion.

What's the operating temperature range? Flows smoothly from -33°C startups to over 200°C under full throttle, keeping your engine safeguarded.

How long does a bottle last unopened? Up to 12 months when stored cool and dry; always check for changes in color or smell before use.