2019 Infiniti QX50 crossover to debut variable-compression engine

Infiniti QX50 concept, 2017 Detroit auto showEfforts by automakers to increase fuel efficiency and reduce carbon emissions have intensified in recent years as emission rules have tightened and the effects of climate change are better analyzed. While electric cars and hybrids will grow in popularity, the internal-combustion engine remains the default way of power—and likely will for...

Mazda’s SkyActiv-X: diesel fuel economy from gasoline engine

2020 Mazda 3 prototypeThe internal combustion engine, now more than 200 years old, will be with us for a long time to come yet. Powering more than 1 billion vehicles on the planet and almost 100 million new ones each year, it is the default way to move vehicles along the world's roads. With its carbon emissions now conclusively implicated in climate change, electric...

2019 Mazda 3 to feature world-first HCCI engine for efficiency: report

2017 Mazda MAZDA3It's a technology that's been a sort of Holy Grail in the auto industry for at least a couple of decades. Now Mazda, one of the smallest global automakers, plans to introduce it in a radical new engine to be used in a future Mazda vehicle in 2019. It's called homogeneous charge compression ignition, or HCCI: in essence it lets a gasoline engine...

Mazda exec: engines can get cleaner, EVs will die without subsidies

2017 Mazda CX-5 Grand TouringSmall Japanese automaker Mazda is in a tough spot. It's been on its own for most of a decade now, after Ford sold its shares in the company, and now Mazda must fund numerous new models all by itself. With global sales of just 1.5 million vehicles, it's one-seventh the size of Toyota or Volkswagen. DON'T MISS: Mazda to launch homogeneous-charge...