Diesel and gasoline engines might look alike under the hood, but they use oil in very different ways. Gas engines run cleaner, but diesels create much more soot, crank out higher compression forces, ...

What was damaged at the El Segundo oil refinery and to what extent will be key factors in whether fuel prices rise in ...

Though some factions are doing so in low-key kicking and screaming fashion, the world is slowly but surely beginning to dial back its reliance on fossil fuels. But as the tide begins to turn on the ...

Gas prices tend to change as the weather cools. Here's how and why, plus gas prices in North Carolina and across the nation.