Motor Oil

AMSOIL 100% Synthetic Diesel Oils deliver extraordinary lubrication in both diesel and gasoline engines found in commercial, fleet and personal vehicles. By combining the industry's premier synthetic technology with AMSOIL premium additives, AMSOIL Diesel Oils exceed the higher performance demands of modern engines. It withstands the stress of higher heat, higher acid levels and excessive soot loading found in EGR-equipped engines. AMSOIL Diesel Oils consistently outperforms conventional and synthetic diesel oils for long-lasting performance and protection. Engineered for pre-2007 diesel engines in on-road applications as well as all model year diesel engines in off-road applications. For current models there is a low ash

AMSOIL Marine Synthetic Motor Oil is a premium quality synthetic formulation engineered for the harsh operating conditions of marine environments. It withstands the intense mechanical action of continuous, high RPM operation to deliver superior viscosity protection. Amsoil Marine Synthetic Motor Oil is specially fortified with a heavy treatment of advanced additives that protects motors against wear, rust and deposits. It excels in both high horsepower applications and all-day trolling conditions.

AMSOIL Synthetic Motorcycle and Scooter Oils are the result of extensive research, and it is specially formulated to excel in all areas unique to motorcycles, including high engine RPM, wet clutch lubrication, extreme pressure regions of gears and rust common to short drives and storage.

Excellent for use in high RPM, high temp racing and high-performance applications under severe conditions. Ensures critical engine components are protected for the duration of the race. Reduces friction for max power and cooler engine temperatures, resulting in improved lap times and longer-lasting equipment.

Specially formulated for 4-stroke recreational motors, ATV's and snowmobiles. Reduces wear. Wet-clutch compatible. Contains no friction modifiers. Broad viscosity range makes it excellent for use in both hot and cold weather conditions.

Amsoil makes high-performance 2-cycle oils with an emphasis on exhaust power valves. Contains high levels of detergent additives to prevent valve sticking. Replaces manufacturer-branded oils. Excellent in snowmobiles, motorcycles, PWC, ATVs and jet boats. Read here for the full list of 2-cycle oils.

AMSOIL Synthetic Vehicular Natural Gas Engine Oil delivers superior protection and performance in vehicular and mobile natural gas engines calling for an API CF 15W-40 low-ash lubricant.