The Liqui Moly 25030 Marine Gear Oil GL4/GL5 80 W/90, a 250 ml bottle is an essential addition to any marine enthusiast's equipment. This high-performance gear oil is designed for use in a broad range of marine applications, including electric and internal combustion engines. The 80W viscosity grade ensures optimal lubrication in even the most demanding conditions, while the GL4 and GL5 fluid grade system allows for easy interchangeability between engine types. With Liqui Moly's reputation for quality and innovation, you can trust that this gear oil will provide years of reliable service.