When it comes to being the pioneer and forefront of automotive engineering, Germany takes the trophy. German engineers have invented a ring-shaped engine, which is believed to be a threat to hydrogen ...

Over 130,000 Kia vehicles are being recalled south of the border thanks to an issue with piston rings in that brand’s 2.0L four-cylinder engine, found under the hood of some Soul and Seltos models.

As with gasoline, you don't want to pump in too much of it for so long that it starts cleaning the inside of your engine. The life of components like piston rings and cylinder liners can be ...