Just because the oil on your dipstick is black doesn't mean it's time for an oil change. In fact, that really just means the oil is doing its job.

Add Yahoo as a preferred source to see more of our stories on Google. As engine standards change, the oil that protects them has to change too — especially for drivers buying new trucks in the next ...

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 ...

Some folks impacted by the L87 engine recall should now be running an updated oil spec, which has us wondering - how's your unreplaced L87 engine doing so far?

The oil in your engine can evaporate, but only under very specific — and extreme — operating conditions. These conditions occur when your engine is operating at very high temperatures, which can ...

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 ...

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 ...

Current production cars are capable of much longer tenure on the road than in decades past. Odometer numbers well in excess of 100,000 miles are a testament to enhanced engineering, fuel injection, ...

Engine oil is not only a lubricant but also a vital indicator of engine health. Comprehensive analysis and degradation monitoring techniques enable the detection of chemical and physical changes that ...