Next Generation of Diesel Oils

New API diesel specifications are on the way, and we’re ready with new AMSOIL Signature Series Max-Duty Synthetic Diesel Oil...

November 10, 2016

New API diesel specifications are on the way, and we’re ready with new AMSOIL Signature Series Max-Duty Synthetic Diesel Oil and AMSOIL Heavy-Duty Synthetic Diesel Oil launching in February.

The two upcoming new API diesel oil specifications focus on these five goals:

  • 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 API CJ-4 (and prior) oils.

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

A Sneak Peek

The launch of the new API specifications in December will prompt a significant change in the AMSOIL synthetic diesel oil lineup as all-new API CK-4 diesel oils are added to the mix. Premium Synthetic Diesel Oil (DEO, DME) will be discontinued and replaced by new AMSOIL Signature Series Max-Duty Synthetic Diesel Oil, and OE Synthetic Diesel Oil (OEC, OED) will be discontinued and replaced by new AMSOIL Heavy-Duty Synthetic Diesel Oil in February.

AMSOIL Signature Series Max-Duty Synthetic Diesel Oil

Like Signature Series Synthetic Motor Oil for gasoline engines, Signature Series Max-Duty Synthetic Diesel Oil will represent the top tier of AMSOIL protection and performance for diesel engines. Signature Series will be available in 5W-40 and 15W-40 viscosities, as well as new 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.

A Premium All-Fleet Oil

Signature Series 5W-30 Max-Duty Synthetic Diesel Oil will be a premium all-fleet oil engineered for modern diesel and gasoline engines.

  • 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

AMSOIL Heavy-Duty Synthetic Diesel Oil will provide outstanding protection and performance for customers seeking an upgrade over conventional and synthetic-blend diesel oils, while being price-competitive with other synthetic brands in the marketplace. AMSOIL Heavy-Duty Synthetic Diesel Oil will be 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

Look for more exciting information about the new AMSOIL synthetic diesel oil lineup in the coming months.

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