Engine Oil

AMSOIL Synthetic 15w-40 Heavy Duty Diesel and Marine Oil and AMSOIL Synthetic 10w-30 Motor Oil contain tough, dependable anti-rust agents that shield engine metals from water. Both are formulated with 12 Total Base Number (TBN) for dependable, long-lasting acid inhibition and corrosion protection. Generally, motor oils average 9 TBN, significantly lower corrosion protection than the 12 TBN of AMSOIL 10w-30 and 15w-40.

The anti-rust, anti-corrosion protection of AMSOIL 10w-30 and 15w-40 is especially important during periods of lay-up when standing water may do great harm.

Engine Oil Filters

The AMSOIL Dual Remote Oil Filtration System pairs an AMSOIL SDF Full Flow Oil Filter with an AMSOIL By-Pass Oil Filter, providing the superior water and small- particle capture of by-pass filtration and top-quality full-flow filtration on one convenient, easily accessible mount.

The Dual Remote filtration system increases the volume of oil in engine circulation, especially when the largest possible filters are installed in the system. Increased oil capacity increases oil life, helps optimize engine operating temperatures, and enhances engine life.

With AMSOIL 15w-40 or 10w-30, the Dual Remote Oil Filtration System and a regular program of used oil analysis and filter changes, gasoline inboard marine engines may never need another oil change.

Performance Improver Gasoline Additive

AMSOIL Performance Improver Gasoline Additive dissolves and removes fuel system deposits and other contaminants for improved power and overall performance in both injected and carbureted gasoline engines. AMSOIL PI also reduces PCV and EGR system deposits, reduces exhaust emissions, and improves engine starting, idling, and response.

Gasoline Stabilizer

AMSOIL Gasoline Stabilizer keeps gasoline and diesel fuel from oxidizing and deteriorating, prolonging its storage life. Gasoline Stabilizer inhibits the formation of varnish and gum, which helps prevent injector clogging and poor engine performance.