Automobile engines have undergone tons of changes over the years, primarily to make them more efficient. For the most part though, engine changes result from a string of iterative improvements on ...

Port fuel injection (PFI) was a major milestone in the early '80s. The integration of PFI rapidly changed the way fuel was delivered by increasing fuel economy and improving engine performance. Even ...

If you think direct-injection diesel engines made their debut in the 1980's, think again. The first diesel without extra ...

Carburetors are old news. We've moved on to electronic fuel injection long ago. But of the two main varieties of fuel ...

A cutaway image of a direct-injected BMW engine - Ton1~commonswiki/Wikimedia Commons Until the early 1990s, many gasoline engine designs relied on carburetors to produce the fuel-air mixture needed to ...