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Green Car Congress
Aug 30, 2016, 6:00 am103 ptsStarting in the 1970s, the average compression ratio of engines—which up to that period had evolved pari passu with octane ratings—began diverging from the octane trend due to advanced engine design and controls, as illustrated by data compiled by the US Department of Energy (DOE). From the 1920s to the…
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Leaf through planet Earths environmental headlines in one convenient place. Read, share and discover the latest on ecology, science and green living from the web's most popular sites.