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AMSOIL Diesel Oil Guide

  • AMSOIL lubricants as tough as the trucks they protect
  • AMSOIL lubricants help you save money on fuel and maintenance
  • AMSOIL lubricants help minimize equipment downtime
  • AMSOIL lubricants maximize fuel economy


AMSOIL introduced the world's first synthetic motor oil for diesel engines in 1975. AMSOIL synthetic diesel oil was formulated to outperform conventional diesel oils on all counts. From the beginning it was clear that this innovative product would play a major role in engine performance and engine life.

Today, AMSOIL synthetic diesel oils are synonymous with power and performance. They're tough, reliable and they withstand the devastating effects of severe-service towing and heavy hauling that destroy lesser oils. By reducing friction and guarding against wear, AMSOIL synthetic diesel oils increase fuel economy and help keep vehicles on the job, saving you money.


Frequently asked questions for diesel applications when it comes to AMSOIL Synthetic Diesel Lubricants. Videos tips that every diesel owner should know.


Performance Tests

AMSOIL Diesel Fleet Fuel Economy Study in Stop-and-Go City Conditions (G3086)Diesel Fleet Fuel EconomyStudy in Stop-and-Go Conditions
AMSOIL Premium API CJ-4 5W-40 Synthetic Diesel Oil (DEO) Shear StabilityAMSOIL Premium API CJ-45W-40 Synthetic Diesel OilShear Stability
AMSOIL increases fuel economy by 6.54 percent in short- to medium-haul diesel applicationsDiesel Fleet Fuel Economyshort- to medium-haul dieselincrease fuel economy by 6.54 percent


Filtration & By-Pass Filtration

Donaldson Blue Oil FiltersDonaldson Blue Oil Filters
Donaldson Blue Heavy Duty Air FiltersDonaldson Blue Heavy DutyAir Filters
AMSOIL Ea® Oil FiltersEa® Oil Filters
AMSOIL Heavy-Duty Bypass SystemHeavy-Duty Oil Bypass Systems


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