Quote:
Originally Posted by Angmaar
The Insight has weird A/F ratios (up to 1:25 or something) and the SGII was designed for 1:14.7.
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Yeah, that's the problem (at least as I understand it): the SGII isn't actually measuring fuel consumption directly, it's inferring it from other measurements and some assumptions, like the A/F ratio. If your engine doesn't follow the assumptions it uses, the values will be wrong.
There are other cars besides the Insight that have some variety of lean burn tech:
Lean burn - Wikipedia, the free encyclopedia