If you use diesel fuel in cold weather, it has a chance of turning into a gel-like substance. Gasoline doesn't have this problem, though. Here's why.

Heavy duty diesel engines are designed for long hours and extreme loads, but even the toughest systems fail without early ...

Cylinder misfires can turn a smooth commute into a rough, fuel‑wasting slog, and they almost always leave a trail of diagnostic clues if you know where to look. I focus on four of the most common ...