Liqui-Moly Marine 4T Motor Oil 10W-30 is a high-performance, low-friction engine oil developed specifically for 4-stroke marine engines. Formulated using advanced synthetic technology and marine-specific additive packages, this oil provides unmatched protection against corrosion, salt exposure, moisture ingress, and high-load marine operating conditions. Engineered for rapid oil penetration and superior lubrication even during cold starts, this marine 4T oil delivers exceptional wear resistance and ensures optimal protection for engines equipped with or without turbochargers. Fully compliant with — and exceeding — major marine engine manufacturer requirements, it also carries the NMMA FC-W® approval, making it suitable for warranty-compliant servicing of modern marine engines. Perfect for outboards, inboards, personal watercraft, and all 4-stroke marine engines operating in harsh saltwater or freshwater environments.

• Synthetic-technology 10W-30 marine engine oil for 4-stroke engines
• NMMA FC-Wu00ae approved, meeting strict marine manufacturer requirements
• Provides rapid oil penetration for fast lubrication and turbocharger protection
• Offers excellent wear resistance under high-load marine conditions
• Delivers outstanding corrosion protection, even in saltwater environments
• High stability to aging for extended oil life and reliable performance
• Ensures excellent cold-start behaviour in fluctuating marine climates
• Ideal for outboard and inboard engines, watercraft, and marine recreational vehicles