AMSOIL Synthetic Diesel Oils

AMSOIL's most advanced

Drain at 25,000 miles*

"...Diesel Oil of the Future!"

Series 3000 Synthetic 5W-30 Heavy-Duty 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 premium additives, AMSOIL HDD exceeds 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 Series 3000 Synthetic 5W-30 Diesel Oil consistently outperforms conventional and synthetic diesel oils for long-lasting performance and protection. Trucks tested with HDD in there engines and AMSOIL lubes in the drivetrain obtained up to 8.2% more mpg than matched trucks with conventional oils.  HDD also delivers up to 82% greater wear protection than other popular diesel oils.

Mobil and other oil companies will not develop a 5W30 oil for diesels!
they want you buying more of their oil and fuel!

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Oil for 2007 Diesels
Use manuf. longest drain interval

AMSOIL Synthetic 5W-40 Premium Diesel Oil (DEO)
AMSOIL Synthetic 5W-40 Premium Diesel Oil (DEO) is 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.

Built with the latest additive and synthetic base oil technology, AMSOIL Synthetic 5W-40 Diesel Oil exceeds the higher performance demands of modern engines. It withstands the stress of heat, soot and acids to help prevent deposits, corrosion and wear. AMSOIL Synthetic 5W-40, with its broad viscosity range, is ideal for winter and summer use. It resists breakdown and can extend drain intervals when monitored by oil analysis.

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Synthetic Blend 15W40

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. This multi-use oil is designed for both heavy-duty diesel engines (including modern EGR units) and gasoline engines, combining versatility and heavy-duty engine protection into one cost effective motor oil. It is formulated with high levels of dispersant and detergent additives that effectively control acids and soot thickening to prevent corrosion, wear and deposits. AMSOIL Synthetic Blend 15W-40 Heavy Duty Motor Oil is excellent for all season use in on or off road applications.

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For off-road, and pre-2007 on-road diesel engines
Drain at 25,000 miles*

Synthetic 10W-30/SAE 30 Heavy Duty Diesel Oil (ACD)
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. Unlike conventional SAE 30 motor oils, AMSOIL ACD has a naturally high viscosity index and does not contain paraffin (wax). It has a -36°F pour point and qualifies for SAE 10W, making it an “all season” multi-grade lubricant with a wide operating temperature range. AMSOIL ACD is formulated without viscosity index improvers (VI). This shear stable formulation stops viscosity loss and associated bearing and cylinder bore wear. AMSOIL ACD contains premium additives with a high 12 TBN to neutralize acids from blow-by, exhaust gas recirculation (EGR) and high sulfur diesel fuels. It protects against damaging piston deposits, ring sticking and sludge.

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