Regular gas accidentally got mixed with diesel fuel at a Michigan gas station, and now many drivers are having problems.

E10 fuel contains 3% less energy than other low-grade petrols. This means if you swap regular unleaded for E10, you’d need ...

California gas prices are higher than the prices in most of the rest of the United States, but taxes are only a small part of ...

A metro Detroit Meijer Express fuel station had a fuel mix-up in March, leading the company to offer to reimburse customers ...

In a win for farmers, the EPA increased the amount of biofuels that must be blended into gas and diesel.

Florida and U.S. gas prices have risen a dollar since the Iran War began. Diesel is up nearly $2. Here's why that's bad for ...

Switching from a gasoline engine to a diesel-powered setup is an enticing possibility, but it requires a lot more work than ...

Amid a rapid rise in state gas prices caused by the war in Iran, a Democratic gubernatorial candidate is calling for a ...

A recent EPA reference mixed up NOx and nitrous oxide. It’s an easy mistake. Just not one you expect to see in emissions ...

Fuel prices in Australia are soaring, meaning fuel efficiency in vehicles is a more important consideration than ever. Hybrid ...

American drivers notice soaring gas prices. But another fuel – diesel – is also on the rise, and at a much faster pace. While you’ve likely never bought a gallon of diesel, it’s still worth worrying ...