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

Putting vegetable oil in a car engine is a terrible idea and should never be done, or at least that's what some experts say. What do real-life tests show?

In the world of automotive engine oils, 0W-20 is one of the thinnest, though oils as thin as 0W-8 are now used. The 0W stands for 0-weight in winter, and the 20 stands for 20-weight when the oil is ...

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

Selecting the right engine oil can be challenging. Between the various different brands and the confusing numbers and oil classifications, you may feel overwhelmed while staring at hundreds of bottles ...

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, ...

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

Under normal circumstances, most modern engine oil and gasoline brands work fine on their own to keep your engine running smoothly. But there may be cases where even the best of them could use a ...

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

Walk into any parts store and you'll see the rows of glossy bottles promising to stop engine wear, boost fuel economy, and make your old clunker run like it just rolled out of the factory. The auto ...

The API is aiming for a 2027 rollout of the new engine oil spec, which is meant to enhance performance standards.

Do you have warning lights, misfires, and/or starting trouble? If so, you car's timing belt could be faulty -- it's time to ...