It's illegal to use E15 in lawnmowers, motorcycles, boats, and heavy-duty vehicles. And you may want to think twice before ...

When you pull up to the pump, the choice between regular and premium fuel can feel like a small but important decision. Premium gas usually costs more, and many drivers assume it automatically ...

Most V8 fans accept the fact that choosing a vehicle with such an engine means higher gas bills and overall running costs. As addictive as a V8 roar is, boosted and/or hybridized six-cylinder ...

Diesel engines have a steadfast reputation for reliability, longevity, and pumping out gobs of grin-inducing, low-end torque. The latter makes diesels preferable over gas engines for hauling, towing, ...

Having fuel injectors on all mass-produced vehicles is one of the biggest automotive breakthroughs of the past few decades. If you've ever gone through having to start an engine with a poorly tuned ...

The 11,000-horsepower, nitromethane-burning engine that powers a modern Top Fuel dragster is the very definition of controlled chaos, a cacophony of explosive elements and incredible forces delicately ...

Diesel prices squeeze farmers as fuel costs climb, margins shrink. How farmers can save fuel as they plan spring planting.