[KrautBurner]

Originally Posted by Vman455

A huge difference. Running errands around town tonight, I pulled into the driveway sitting at 81.8 mpg for the trip on the Scangauge. However, by far the majority of my driving is on the freeway, more than 250 miles per week, where the aeromods really pay off.

this is what I was wondering

my wife has a 2010 Prius II (it will become my commuter in another year or so)
she drives it like a normal car (no real regard for mpg) and averages about 46mpg

I can coax about 53-54 out of a tank if I'm careful

if I use it for my commute, I end up with abut 50mpg (55 miles each way, all highway, lots of hills (about 2,000-2,500 ft of combined elevation each way))
I'd love to squeeze another fifteen mpg out of it, but I don't know if that's possible