An engine's displacement dictates power output based on the bore and stroke, while compression ratio influences how strong ...

Westport’s next‑generation compressed natural gas fuel storage system, combined with Cespira's on-engine HPDI™ fuel system, marks a major step toward commercializing heavy-duty trucks with diesel perf ...

Carbon buildup can create some big issues while you're driving. A few engine parts are more susceptible to it than others, so ...

From reading harmonic balancer marks to spotting crankshaft seal leaks, mastering engine timing and diagnostics can transform performance and prevent costly repairs. With the right tools and know‑how, ...

Toyota recommends 87 octane for the 2025 Prius, but one owner hit 61.1 MPG using 91 premium. We analyze Jason Black’s ...

Trying to mix gasoline and diesel in most engines will only lead to problems in the long run. But engineers have found a way ...

Originally used in Formula 1 engines, Turbulent Jet Ignition allows Stellantis models to produce impressive power even with ...

E85 is expected to enter the market not as a replacement for existing petrol grades but as a separate fuel category ...

The Harley-Davidson Milwaukee-Eight is named after the city in which Harley-Davidson is based, and the number of valves the ...

Forumla 1 engines have better thermal efficiency than regular car engines because of pre-chamber ignition, high compression ratios, and the MGU-H.

As the United States marks its 250th anniversary, WTOP presents “250 Years of America,” a multipart series examining the innovations, breakthroughs and pivotal moments that have shaped the nation ...