A group of us from Cleanmpg drove a euro-spec Honda i-CDTi across the country last month. It does have an obd-ii port, so we hooked up the scangauge. We also found it hard to calibrate. We never did get it to read anything accurate. I think the SG is not calculating right for diesels. Best hope may be for a software update or maybe a new version.
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11-mile commute: 100 mpg - - - Tank: 90.2 mpg / 1191 miles
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