Amsoil is ready with new diesel oils

Two new API diesel specifications by the industry prompted AMSOIL to introduce some new formulations to the market.

The new API diesel oil specifications focuses on these five objectives:

  • Reduced emissions

  • Improved fuel economy

  • Stronger oxidation stability

  • Better shear stability

  • Increased resistance to aeration

The new API CK-4 specification is designed for current model-year and older diesel engines and is backward-compatible with the older API CJ-4 (and prior) oils.

The new API FA-4 specification is designed to further improve fuel economy and reduce emissions.  However API FA-4 oils is not backward-compatible and should only be used in certain 2017 and newer over-the-road trucks.  When they become officially approved by the original equipment manufacturer (OEM).

AMSOIL Signature Series Max-Duty Synthetic Diesel Oil

Just like Amsoil Signature Series Synthetic Motor Oil for gasoline engines.  Amsoil Signature Series Max-Duty Synthetic Diesel Oil represents the top tier of AMSOIL diesel protection and performance for diesel engines.  It is available in 5W-40 and 15W-40 viscosities, as well as the newer 0W-40 and 5W-30 viscosities.

  • Max-Duty engine protection and performance

  • Significantly exceed industry requirements

  • Full OEM specification coverage

  • Reduced oil consumption

  • Extended drain intervals, including reintroduction of 25,000-mile/one-year drain intervals for turbodiesel trucks.

Signature Series 5W-30 Max-Duty Synthetic Diesel Oil was formulated as a premium all-fleet motor oil engineered for modern diesel and gasoline engines as well.

  • Meets the latest diesel and gasoline oil specifications, including API CK-4 and API SN

  • Emissions-system compliant

  • Low viscosity delivers protection equal to higher viscosity engine oils

AMSOIL Heavy-Duty Synthetic Diesel Oil

The Heavy-Duty Synthetic Diesel Oil provides outstanding protection and performance for customers seeking an upgrade over conventional and synthetic-blend diesel oils. AMSOIL Heavy-Duty Synthetic Diesel Oil is available in 15W-40 and 10W-30 viscosities, as well as a new 5W-40 viscosity.

  • Heavy-duty engine protection and performance

  • Excellent opportunity for price-conscious customers to move up to AMSOIL quality

  • Reduced oil consumption


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