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MrPlow [soylentnews.org] writes:
Submitted via IRC for AndyTheAbsurd
It's called Spark Controlled Compression Ignition, and Mazda made it work.
Source: https://arstechnica.com/cars/2018/01/mazdas-skyactiv-x-shows-the-internal-combustion-engine-has-a-future/ [arstechnica.com]
Original Submission