When you think of four-cylinder engines, chances are, you're thinking of a system where each cylinder uses a single spark plug to ignite the fuel. This would seem to make sense; why go through the ...

Toyota has kept one of its workhorse four-cylinder engines in production for roughly a quarter of a century, an unusually long run in an industry that constantly refreshes powertrains to chase ...

How Mercedes and GM took the turbocharged four-cylinder to its current peak.

The car manufacturing game has changed a lot over the years. We’ve seen trends come and go, and the SUV trend looks set to stay for an extended period. At the heart of that trend is an engine option ...

In most cases, the number of spark plugs in a gasoline engine is typically represented by the number of its cylinders. For instance, it's perfectly normal for a V8 engine to have eight spark plugs, a ...