Mazda's engine breakthrough promises big fuel efficiency gains
 

Mazda has made the announcement car manufacturers have been working towards for years: it's releasing the first commercial compression-ignition gasoline engine. Dubbed SkyActiv-X, the engine will be available in 2019 and promises up to 20-30% more en...

https://www.engadget.com/2017/08/08/...iciency-gains/