Mazda has announced that its upcoming all-new Mazda2 will be fitted with a newly developed four-cylinder, 1.5-litre SKYACTIV-D clean diesel engine.

The company says the SKYACTIV-D 1.5 was developed in the pursuit of ideal combustion despite a very low compression ratio, as well as meeting forthcoming Euro VI emissions regulations.

Previewed in the Hazumi concept unveiled at the Geneva Motor Show earlier this year, the Mazda SkyActiv-D 1.5 generates 77 kW at 4000 rpm and a peak torque of 250 Nm available between 1500 rpm and 2500 rpm.

Key features of the Mazda SkyActiv-D 1.5

Development pursued ideal combustion efficiency despite the lowest compression ratio of any small displacement diesel engine—14.8:1.Cooling loss is suppressed by combustion mode transition control technology, and high dispersion solenoid injector which, along with stepped egg-shaped piston that help reduce contact between the flame and chamber wall.The range of homogeneous lean burn is extended through the adoption of high-pressure EGR and low pressure EGR systems, resulting in improved fuel economy, environmental performance and performance feel.Engine cooling system features cooling water control valves (CCV) and water jacket spacers for improved combustion efficiency and reduced mechanical resistance.Variable turbine geometry turbocharger with rotation sensor delivers plentiful boost pressure from low through to high engine speeds.Water-cooled intercooler integrated into the intake manifold improves acceleration response and turbocharger efficiency.Outstanding environmental performance to meet Japan’s Post New Long-term regulations and Euro6 emission standards without an expensive NOx after treatment system.

The all-new Mazda2 is scheduled to make a debut later this year.