Mazda is about to reveal a major innovation for the internal combustion engines in a way that could improve fuel economy by as much as 30% and lower emissions. ‘Homogeneous charge compression ignition’ (HCCI) is the complex name for a system that in more simplistic terms involves compressing the mixture of petrol and air in a cylinder until it ignites, rather than using a spark plug. This combustion method essentially makes a petrol-fueled engine work in a similar way as a conventional diesel-powered engine.
This new powerplant with this cutting-edge technology would arrive in 2018 on an updated Mazda3. It would be part of the brand’s SKYACTIV 2 suite of tech for improving fuel economy. HCCI could deliver fuel efficiency of up to 30 kilometers per liter, which is better than most hybrids.