Marine Guide
AMSOIL for marine and outboards
Marine engines operate in a high-load environment where the correct engine oil, lower-unit lubricant and fuel-system products matter. Use the dedicated AMSOIL Marine Outboard lookup to match your engine.
Marine Engine Oil
Engine oils intended for marine applications and common marine viscosities.
Gear Oil
Lubricants for gear-driven marine components where applicable.
Fuel Additives
Fuel-system products for gasoline and diesel applications.
Filters
Use the lookup and filter guides to identify compatible filtration products.
Match the exact engine
Outboards can have different lubrication requirements based on manufacturer, model, horsepower and year. Enter the exact engine information rather than choosing only by horsepower or brand.