AMSOIL Synthetic Diesel Motor Oils

The full line of AMSOIL synthetic diesel oils withstands the punishment of modern and older hardworking turbo diesels. Model-year 2007 and newer diesels use diesel particulate filters (DPFs) and other exhaust-treatment devices to meet government emissions regulations. To function properly and last as designed, DPFs and exhaust-treatment devices require low-emissions oils that meet the API CJ-4 specification. Diesels built prior to 2007, however, can use any AMSOIL synthetic diesel oil of the correct viscosity.

Protection and Performance

AMSOIL synthetic diesel oils reduce friction and wear better than conventional oils, helping hard-working diesel engines perform better and last longer. They withstand high-temperature breakdown to help prevent harmful deposits from forming while remaining fluid in sub-zero temperatures for easier cold starts and fast circulation.

Maximum Fuel Economy

The advanced lubricity of AMSOIL synthetic diesel oils results not only in enhanced performance and protection, but increased fuel efficiency as well. With less resistance to internal moving parts, engines are able to operate at peak efficiency and deliver maximum mpg.

Extended Drain Intervals

AMSOIL coined the phrase “extended drain interval” more than 40 years ago. Advanced chemistries allow extended-drain AMSOIL synthetic diesel oils to remain effective up to two times longer than original equipment manufacturer (OEM) recommendations. Diesel owners benefit significantly through reduced oil costs and increased convenience due to fewer oil changes and less used oil disposal.

Heavy-Duty Synthetic Diesel Oil

Formulated for Exceptional Diesel Engine Protection

AMSOIL Heavy-Duty Synthetic Diesel Oil is formulated for hard-working equipment. It is engineered to provide 4X better wear protection than required by the Detroit Diesel DD13 Scuffing Test for Specification DFS 93K222, giving you the edge to keep trucks and equipment operating at peak performance. Heavy-Duty Synthetic Diesel Oil offers outstanding value and provides excellent protection for customers seeking an upgrade over conventional, synthetic- blend or competing synthetic diesel oils.

Heavy-Duty Engine Protection

Wear on rings and cylinder liners leads to increased oil consumption and loss of compression, resulting in reduced horsepower and fuel economy. Independent testing shows AMSOIL Heavy-Duty Synthetic Diesel Oil delivers 4X more wear protection than required by the Detroit Diesel DD13 Scuffing Test for Specification DFS 93K222 to help maximize equipment life and reduce maintenance costs and downtime.

Heavy-Duty Synthetic

Diesel Oil 10W-30

Heavy-Duty Synthetic

Diesel Oil 5W-40

Excels in Extreme Temperatures

AMSOIL Heavy-Duty Synthetic Diesel Oil is formulated to deliver improved heat and oxidation resistance compared to conventional diesel oils. It provides clean engine operation and helps maintain power and fuel efficiency for superior engine performance. AMSOIL Heavy-Duty Synthetic Diesel Oil also flows dependably in cold temperatures for easier startup and improved engine protection.

SERVICE LIFE

AMSOIL Heavy-Duty Synthetic Diesel Oil is recommendedfor the drain intervals stated by the original equipment manufacturer (OEM). Refer to the owner’s manual for the specific oil change interval. Intervals may be extended beyond the OEM-recommended interval with oil analysis.DOWNLOAD AMSOIL HEAVY-DUTY SYNTHETIC DIESEL OIL BROCHURE

Heavy-Duty Synthetic Diesel Oil 15W-40

Signature Series Max-Duty Synthetic Diesel Oil

Maximum-duty protection for your hardest-working diesel engines

Protect your investment in diesel power and confidently extend drain intervals with our top-grade synthetic diesel oil. AMSOIL Signature Series Max-Duty Synthetic Diesel Oil delivers 6X better wear protection than required by the Detroit Diesel DD13 Scuffing Test for Specification DFS 93K222. Advanced synthetic technology provides excellent viscosity control and outstanding extreme-temperature performance, while minimizing oil consumption. The result: protection that's boosted to the max.

Maximum Engine Protection

Wear on rings and cylinder liners leads to increased oil consumption and loss of compression, resulting in reduced horsepower and fuel economy. Independent testing shows AMSOIL Signature Series Max- Duty delivers 6X more wear protection than required by the Detroit Diesel DD13 Scuffing Test for Specification DFS 93K222, delivering the security of providing your diesel the extra protection it deserves.

Max-Duty Synthetic

Diesel Oil 5W-30

Max-Duty Synthetic

Diesel Oil 0W-40

Minimizes Oil Consumption

AMSOIL Signature Series Max-Duty has a low rate of volatility (burn- off), reducing oil consumption during operation and passing lessoil vapor into the combustion chamber. It provides up to 76 percent less oil consumption than required by the API CK-4 standard in the Caterpillar-1N oil consumption test.

Viscosity Control

Using top-tier synthetic base oils, AMSOIL Signature Series Max- Duty is naturally resistant to oxidation and the thickening effects of soot contamination. That, along with boosted detergent/dispersant additives, keeps soot particles suspended independently, helping prevent the formation of larger, wear-causing particles. Viscosity increase is minimized and soot-related wear is controlled. Lower volatility also helps Signature Series Max-Duty retain its viscosity after high-temperature service for maximum engine protection and efficiency.

DOWNLOAD AMSOIL MAX-DUTY SYNTHETIC DIESEL OIL BROCHURE