At TopSpeed, William Clavey is Editor-at-Large, where he focuses on authority and exclusive content, reviews, news articles, features, and opinion pieces all while sharing his passion for everything ...

E15 fuel is becoming more common, but that doesn't mean it's right for your car. Here's what you need to know about E15 and ...

Gasoline prices remain high in North America amid mixed signals about talks to end the war in the Middle East, leading to ...

A fundamental difference between gasoline and diesel engines is that a gasoline engine uses spark ignition while a diesel engine uses compression ignition. Before we delve deeper, let's understand how ...

Named after Rudolf Diesel, who invented it in 1893, the diesel engine is often associated with a dirty, smoky exhaust — an admittedly nebulous impression in no small part fueled by the black clouds of ...

We may receive a commission on purchases made from links. When winter hits, it brings more than just chilly temperatures — it also brings a bunch of new challenges. Icy roads can decrease your grip ...

Pulling up to a gas pump means making the ultimate decision between regular or premium gas. Does premium gas make a ...

Increasing an engine’s compression ratio is a proven way of unlocking extra horsepower, but there’s a point of diminishing returns. The team at Garage 54, the Russian mechanics who built a V16 using ...

As two of America's traditional 'big three' automakers, Ford and GM have a rivalry steeped in history. They've each offered similar types of products that fulfill the same purpose for buyers, be they ...

We all want the best for our cars, but recent fuel price hikes have forced many motorists to reconsider whether paying extra ...

If you've even casually contemplated purchasing a Ram truck powered by a diesel engine in the last couple of decades, the name Cummins is undoubtedly familiar to you. The Indiana-based company has, ...