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I know this is a little off topic, but I can't find anything specific about the SiDi apart from Holden's marketing hype, but what exactly is it? From what I understand they inject the fuel straight into the cylinder instead of the inlet runners, in an effort to avoid your traditional cylinder swirling. And something about the pistons having a different shape in them to allow a more even burn or something. Anyone care to enlighten me?
Has anyone done a long distance trip (ie Melb to Sydney ) yet to see what figures they're getting?