The Genuine OEM Volvo Penta 1141676 GL-5 Gear Oil Quart SAE 80W-90 is a high-quality gear oil specifically designed by Volvo Penta for their inboard engines and components. This product ensures optimal performance and protection for the gears and other components in the engine, helping to prolong its lifespan and maintain its efficiency. It is a reliable and trusted choice for boat owners looking to properly maintain their Volvo Penta inboard engines.