[SGVLUG] [OT] Especially for Tom & his Prius.... [my rebuttal, then I'll shut up]

[Christopher Smith]

Emerson, Tom wrote:
>    economy -- he did point out 45mpg, and this is the interesting thing:
> given the accent, right-hand-drive, and other factors, I gathered this
> was a UK based review, which leads me to believe he was thinking in
> terms of "imperial" gallons, not "US gallons".  Imperial gallons are
> roughly 1.2 US gallons [http://en.wikipedia.org/wiki/Gallon]  This will
> skew his results -- as such, the "45mpg" he got should be increased by
> about 20% to make up for what HE considers a "gallon" to be [this is an
> oddity to the prius -- I've heard that regardless of locale, it
> displays/calculates MPG as miles per US gallon.  This is because
> internally it measures miles/litre and back-calculate the
> miles-per-gallon figure, and apparently there is only one formula they
> use...]

Wow. So this means the guy was going based on the fuel economy in the
display rather than the "fill tank, drive, figure out how goes in to
refill and combine with odometer" measure. Dumb, dumb, dumb. I'd like to
think he was doing a more rigorous analysis than that.

--Chris