I love it, but they say I won't know until 30,000 miles and the engine is
broken in.  I was doing 80 on the interstate for 90 miles today, and it said
15.4 on the computer.  When I dropped down to 70 in places, it went up to
nearly 17.  Don't know if it's right or not.  I think, though, as with any
motor, the best mileage would be about 60 mph.  A friend of mine pulled a
fifth wheel to Alaska and back and averaged 15.

Best part is when you're doing 70, and you want to get around that big semi
before he starts spitting tire treads.  You kick it, the turbo kicks in, and
you zoom up to 90 and around in a few seconds.

So far, I love mine.

Steve