How Does Mazda?s 2.0L Gas Engine with a 13 to 14.0:1 CR Not Knock? SKYACTIV

How Does Mazda?s SKYACTIV 13.0:1 Not Knock? The 2.0L Gasoline Engine The all-new Mazda 2.0L gas engine?s piston. The cavity is reminiscent of the diesel with a much more controlled flame front without interference. Mazda?s all-new range of SKYACTIV technologies are designed to improve the efficiency of the company?s next generation of vehicles while at the same time further enhancing safety and driving dynamics.