AMSOIL for Diesel Engines

The full line of AMSOIL synthetic diesel oils withstands the punishment of modern and older hardworking turbo diesels. AMSOIL synthetic diesel oils are formulated with premium synthetic technology and robust additive packages, providing vehicles and equipment with the protection they need to stay on the job longer and perform their best. Diesels built prior to 2007, can use any AMSOIL synthetic diesel oil of the correct viscosity.

AMSOIL Premium Synthetic Diesel Oils Formulated with Top-grade Synthetic Technology

Signature Series Max-Duty Synthetic Diesel Oil

• Max-Duty protection against wear
• Significantly exceeds industry requirements
• Full specification coverage
• Reduced oil consumption
• Extended drain interval, reducing maintenance and saving money
• 6X better wear protection than required by the Detroit Diesel DD13 Scuffing Test for Specification DFS 93K222

 0W-40 CK-4 5W-30 CK-4  5W-40 CK-415W-40 CK-4

 

AMSOIL Heavy-Duty Synthetic Diesel Oils offer outstanding value and provides excellent protection

AMSOIL Heavy-Duty Synthetic Diesel Oil

• Heavy-duty protection against wear
• Exceeds industry requirements
• Excels in extreme temperatures
• Reduced oil consumption
• 4X better wear protection than required by the Detroit Diesel DD13 Scuffing Test for Specification DFS 93K222

10W-30 CK-4  5W-40 CK-4 15W-40 CK-4

 

AMSOIL Synthetic Diesel Oils for Smaller American Diesel Pickups, Vans, Cars and SUVs

Not for use in applications that require an API CK-4, SP, or earlier API specification

• Formulated to deliver improved heat and oxidation resistance
• Strong fluid film keeps metal surfaces separated
• Excels in extreme temperatures, both hot and cold
• Low volatility (burn-off), reducing oil consumption during operation
• Delivers up to 6X more wear protection than required by a leading industry standard
• 0W-20 - GM dexosD
• 5W-30 - GM dexosD, dexos2, Chrysler MS-11106, Ford WSS-M2C214-B1, ACEA C3

0W-20 5W-30

 

AMSOIL Synthetic Natural Gas Engine Oil

AMSOIL Synthetic Vehicular Natural Gas Engine Oil

• Provides enhanced valve train protection
• Minimizes valve stem and combustion chamber deposit formation
• Meets low ash requirements
• Maximum protection against viscosity loss
• Formulated for applications requiring Cummins CES 20074

15W-40 CF

 

The AMSOIL CI-4 Synthetic Diesel Oils provide additional high-quality options for pre-2007 diesel applications

AMSOIL Series 3000 SAE 5W-30 Synthetic Heavy Duty Diesel Oil

• Low viscosity minimizes "drag" associated with high-viscosity oils, maximizing power and fuel economy
• Outstanding protection against wear, sludge and varnish
• Extended drain intervals up to 3x manufacturer recommendations, reducing maintenance and saving money
• Excels in Extreme Temperatures

5W-30
CI-4

 

AMSOIL SAE 15W-40 Heavy Duty Diesel and Marine Motor Oil

• Specifically designed for pre-2007 diesels without DPFs
• High 12 TBN controls acids from combustion blow-by and exhaust gas recirculation
• Helps control soot thickening, oxidation and wear
• Maximum fuel economy
• Extended drain intervals up to 3x manufacturer recommendations, reducing maintenance and saving money

15W-40 CI-4

 

AMSOIL Premium Protection 20W-50 Synthetic Motor Oil

• High-zinc formula guards against wear
• High 12 TBN controls acids from combustion blow-by and exhaust gas recirculation
• Helps reduce motor oil consumption in older equipment
• Extra protection of a higher-viscosity oil

20W-50 CI-4

 

Performance Tests

Diesel Fleet Fuel EconomyStudy in Stop-and-Go Conditions

AMSOIL Premium API CJ-45W-40 Synthetic Diesel OilShear Stability

Diesel Fleet Fuel Economyshort- to medium-haul dieselincrease fuel economy by 6.54 percent

AMSOIL Performance Studies