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Mazda introduces HAZUMI concept along with new 1.5-liter SKYACTIV-D diesel

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When fuel is injected under these conditions, ignition takes places before an adequate air-fuel mixture forms, causing localized heterogeneous combustion, resulting in the formation of NO x and soot, Mazda says. SKYACTIV-D Technology Concept. The SKYACTIV diesels feature a low compression ratio of 14.0:1 Source: Mazda.

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