Quote:
Originally Posted by Rufblackbird
FWIW...just came back from a LONG road trip to Arizona and back with a rental '10 Prius. After the engine was broken in (picked it up with 78 miles on the clock) I averaged a consistent 44mpg on the interstate doing 70-75mph...and just shy of 50mpg in (desert) city driving which was mostly around 45 mph. Not sure if the current TDi's are up to par just yet...
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They are, or are very close. Somewhere around the internet is a mpg test with a V10 TDI Audi that averaged above 50 mpg at highway speed, IIRC. The test was, however, done in Canada, where things are a bit different. YMMV.
