The diesel engine oil available for your fleet is about to undergo a major change. Two new oil categories, CK-4 and FA-4, have been announced by the American Petroleum Institute (API) and will replace ...

Three years from now, you'll see a new API diesel engine oil-service category, designed to help meet federal greenhouse gas/fuel economy standards, which have a final phase-in date set for model year ...

Come December, you’ll see a new API oil classification with lower-viscosity parameters designed to be used in the next generation of fuel-efficient engines. In fact, you’ll see two different oil ...

Diesel engine makers and truck OEMs will, within a few short years, expect motor oil to contribute to the mandated greenhouse-gas emissions (GHG) reduction and corresponding increase in miles per ...

Delo 400 XSP SAE 15W-40 (Full Synthetic) with ISOSYN Advanced Technology is a mixed-fleet engine oil recommended for naturally aspirated and turbocharged four-stroke diesel engines and four-stroke ...