You've seen the evidence. You disassemble an engine and witness the appearance of deposits—or their absence—on piston crowns and combustion chambers in the cylinder heads. You can relate the presence, ...

Keeping the hydrogen and the combustion pressures inside takes serious sealing, so Toyota has multiple gaskets and o-rings to ...

Hydrogen combustion engines are inefficient, costly to maintain and worse for the environment than fuel cell or battery powertrains. But they're also noisy and fun, so automakers are starting to pitch ...

Power Up Your IC Engine Systems Knowledge at Michigan Tech. From heavy-duty trucks and agricultural machinery to shipping fleets, aviation, and power generation, internal combustion engines STILL ...

Rotary engines differ from conventional ones in many respects — and one of them is the fact that they use two different spark ...

Some agree that batteries are the clear winner in the race against hydrogen technologies, while others think the opposite. There's no such debate among internal combustion engine proponents. Almost ...

Volvo is trialling hydrogen internal combustion engine-powered heavy-duty trucks on European roads, as it looks to commercially launch a vehicle by 2030.

Will joined the TopSpeed team over two and a half years ago, bringing his lifelong automotive passion, writing experience, and editorial expertise along with him. Whether classic or modern, American ...