January 1, 2027, will be the first license date for two new heavy-duty engine oil categories, if all goes as planned.

API PC-12 engine oil categories CL-4 and FB-4 are advancing toward a 2027 launch. Here’s what the changes mean for fleets, ...

Preparing for EPA 2027? API’s new PC-12 spec (CL-4 and FB-4) introduces ultra-low viscosity 0W-20 oils and stricter emissions ...

Semi-synthetic motor oils use a combination of mineral and man-made oil, while synthetic blends tend to have fewer impurities ...

Engine oils are the lifeblood of a vehicle's engine, ensuring its smooth operation, longevity and protection against wear and tear. When extreme cold temperatures arrive, the choice of engine oil ...

Every fleet owner should know the basics about the viscosity of the lubricants they are using and why the viscosity matters. Fleets—especially mixed ones—require a variety of lubricants. This ranges ...