AMSOIL Synthetic 5W-40 Premium Diesel Oil
The premium choice diesel oil for model-year 2007 and newer heavy-duty and pickup truck diesel engines requiring API CJ-4 emission-quality oil standards. Delivers extraordinary lubrication in diesel engines in commercial, fleet and personal applications. Exceeds modern specs for emission-quality diesel oil.

AMSOIL Premium API CJ-4 Synthetic 5W-40 Diesel Oil (DEO)
AMSOIL Premium API CJ-4 Synthetic 15W-40 Diesel Oil
The premium choice diesel oil for model-year 2007 and newer heavy-duty and pickup truck diesel engines requiring API CJ-4 emission-quality oil standards. Delivers extraordinary lubrication in diesel engines in commercial, fleet and personal applications. Exceeds modern specs for emission-quality diesel oil.

AMSOIL OE 15W-40 Synthetic Diesel Oil
AMSOIL OE 15W-40 Synthetic Diesel Oil provides excellent protection and performance in both on- and off-road diesel engines for the original equipment manufacturer’s recommended drain interval. It meets API CJ-4 specifications and is suitable for both modern and older diesel applications.

AMSOIL Synthetic Diesel & Marine Motor Oil SAE 15W-40

Series 3000 Synthetic 5W-30 Heavy-Duty Diesel Oil
Engineered for pre-2007 diesel engines in on-road applications as well as all model year diesel engines in off-road applications. Also engineered for all gasoline engines recommending API SL specifications including turbo-charged vehicles. Provides superior wear protection and fuel efficiency.
