Starting January 1, 2027, new heavy-duty diesel engines will hit the road. And when engines change, oil has to change with ...

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-regular oil changes are (or should be) a regular part of car ownership, with some drivers going to a mechanic for the service and others opting to do it themselves. Changing your own oil comes ...

While fresh oil is generally transparent and amber colored, black oil may mean it's time for a replacement and frothy oil can ...

Engine oil performs several vital functions: it keeps everything lubricated and running smoothly while also preventing corrosion inside the engine block, keeps things somewhat clean, and even helps ...

GM Authority poll shows owners overwhelmingly want thicker 5W-30 or 0W-40 oil for next-gen V8s, citing durability over thin ...

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

Keeping up with oil changes is one of the simplest yet most crucial ways to extend your truck's life. Diesel engines, especially in hard-working semi-trucks, deal with massive loads and long hauls, so ...

As the single most important fluid in any internal combustion engine—even that mystical rotary business—running the right oil is paramount. It handles so many tasks. Like lubricating crucial ...

Diesel engines have been around for more than half a century. Chances are that if you are around fleets or equipment, you have encountered a diesel engine. They have been described as the workhorses ...