Compression ignition gasoline engines
I notice Mazda is going to have a compression ignition gasoline engine that will still have spark plugs for starting and heavy loads. What would be the advantages of such a engine?
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“If” I’m not mistaken, NASCAR engines run somewhere around 15 (or so) to 1 compression, and get 5+ mpg .....at 200 mph and near 9000 rpm. High compression seems to be working pretty well for them! Of course they are not required to meet EPA standards.
