Diesel engines are different from gas engines in numerous ways, including their use of high compression ratios. Here's why that is and what it means.

It's no secret that AWD and 4WD vehicles are best for the winter, but when it comes to diesel or gas engines, which is better? Here's what you need to know.

You don't see diesels on the road as much ever since Volkswagen's emissions cheating scandal broke, but they're still out there, and the people who love them still love them. That's partly because ...