Formulated for use in both gasoline and diesel engines. Offers multi-functionality and excellent wear protection. Ideal for applications where the extra protection of a higher viscosity oil is desired. Excellent for motor homes and older vehicles, a...

AMSOIL Synthetic Blend 15W-40 Heavy Duty Motor Oil (PCO) features a dual-base of premium synthetic and hydro-processed base oils in formulation with proven high quality anti-wear additives.

Package sizes include:

1-Q...

15W40 Engineered for pre-2007 diesel engines in on-road applications as well as all model year diesel engines in off-road applications. High 12 TBN controls acids from combustion blow-by and EGR. High levels of detergency and dispersancy additives co...

Superior Shear Stability and Extended Drain Intervals in Ultra-Low Emission Diesel Engines. AMSOIL Synthetic 15W-40 Diesel Oil (DME) is the premium choice for API CJ-4 emission-quality diesel oil required by model-year 2007 and newer diesel engines.<...

Formulated for use in both gasoline and diesel engines. Offers multi-functionality and excellent wear protection. Ideal for applications where the extra protection of a higher viscosity oil is desired. Excellent for motor homes and older vehicles, as...

AMSOIL 5W30 Series 3000 100% Synthetic Diesel Oil (HDD) delivers 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 prem...

AMSOIL European Car Formula 100% Synthetic 5W-40 Motor Oil (AFL) is specially formulated for the lubrication needs of modern European gasoline and diesel cars and light trucks. Formulated with advanced AMSOIL synthetic base stocks, premium additives...

Maximum Fuel Economy and Extended Drain Intervals in Ultra-Low Emission Diesel Engines. AMSOIL Synthetic 5W-40 Diesel Oil (DEO) is the premium choice for API CJ-4 emission-quality diesel oil required by model-year 2007 and newer diesel engines
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AMSOIL Synthetic 10W-30/SAE 30 Diesel Oil (ACD) is formulated with premium synthetic base oils that exceed both 10W-30 multi-grade and SAE 30 straight-grade viscosity requirements for outstanding performance in modern and older diesel engines.
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