Quote:
Originally Posted by Diesel_Dave
Bottom line is that no system is completely fair.
Not to mention, not all vehicles have EPA ratings (European vehicles, etc.)--even in the USA.
So, nothing is perfect, but IMO, % over EPA is probably about as good as we can hope for.
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My car (Baa) has no US EPA rating, so I used an average of similar US models and the Australian economy figures.
My reasoning was, that I wanted to compare my results with similar models on this forum.
The trouble with that, is that driving conditions make too much difference to get any usable comparisons anyway.
I recently swapped to the highest Australian city / hwy figures and used the EPA formula that Aveomiler posted recently to work out the combined figure (that site only gives two figures).
That dropped my % from low 30's to high 20's, but that's OK, I'm only really competing against my own figures now, where driving conditions don't matter, only driving style.
