Description Liqui Moly Marine Fully Synthetic Gear Oil GL4/GL5 75W-90 is a high-performance transmission lubricant engineered for marine drivetrains exposed to extreme loads and fluctuating temperatures. Its fully synthetic formulation provides exceptional thermal and shear stability, ensuring smooth gear engagement, reduced friction, and long-term protection in harsh saltwater environments. Designed with strong anti-wear and corrosion-resistant properties, this gear oil supports reliable operation of both sterndrive and inboard transmission systems. It also helps reduce transmission noise and prevents material degradation, making it the ideal choice for high-demand marine applications.
