Mazda SkyActiv-D; Low Compression Equals Low Emissions

13:1 Compression and 40 mpg on 87 Octane fuel? Introducing Mazda's Skyactiv Technology - Page 2 of 7 - MotoIQ

How Mazda's Skyactiv Fuel-Efficiency Technology Works

Mazda to extract 30 per cent more efficiency from internal combustion engine - Drive

Why didn't mazda used skyactiv x for their 6 cylinder cx60,90 but instead used the skyactiv G? : r/mazda

Mazda Says Skyactiv 2 Engines Will Debut Around 2020 & Boost Fuel Economy 30%

Mazda introduces Skyactiv-X, world's most fuel-efficient petrol engine but no spark plugs! - Car News

Mazda's New Spark-Controlled Compression Ignition Revealed

MAZDA: SKYACTIV-D SKYACTIV TECHNOLOGY

An in-depth look at Mazda's SKYACTIV-X technology