If your North American diesel equipped vehicle is newer than 2007, your engine must use diesel motor oil that meets the CJ-4 specification.
Vehicles 2006 and older diesel engine vehicles also have the choice of using CJ-4 oil and can also use the older CI-4+ specification diesel motor oils.
Diesel engine Pickup Trucks 2007 and newer have fuel dilution issues, (Some Caterpillar engines too) due to using the engine injectors on re-burn instead of a dedicated injector in the exhaust, so I recommend you consider the OED and OEC CJ-4 synthetic diesel motor oils Amsoil offers and drain these at your OEM recommended drain intervals. The OED and OEC product is significantly less money than the DME and DEO product.
2007 and newer diesel engine equipped vehicles having a re-burn injector in their exhaust system do not have fuel dilution issues so the premium DEO and DME synthetic diesel motor oils can reach their up to 3 times OEM drain interval full potential.
Amsoil continues to offer the CI-4+ HDD, AME and ACD due to their performance capabilities, extended drain interval performance and a lower price than the DEO and DME product when used in older than 2006 diesel engine vehicles.
Premium API CJ-4 Synthetic 5W-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.
Product Code: DEOqt-ea
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.
Product Code: DMEqt-ea
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.
Product Code: OEDqt-ea
OE 10W-30 Synthetic Diesel Oil
AMSOIL OE 10W-30 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.
Product Code: OECqt-ea
Series 3000 SAE 5W-30 Synthetic 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.
Product Code: HDDqt-ea
SAE 15W-40 Heavy-Duty Diesel and Marine Motor Oil
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. Additives control soot thickening, oxidation and wear. Extended drain capabilities reduce downtime and motor oil expenses.
Product Code: AMEqt-ea
Synthetic SAE 10W-30/SAE 30 Heavy-Duty Motor Oil
Exceeds both 10W-30 multi-grade and SAE 30 straight-grade viscosity requirements. Provides outstanding performance in pre-2007 diesel engines in on-road applications as well as all model-year diesel engines in off-road apps. Also recommended for gasoline engines requiring API SL or previous specifications.
