Drove 94 miles today with the new aerolid.
I zeroed out the ultra gauge when I left for work. Previously, I was averaging 18.7 mpg. I had a pretty good head wind on the way there, and I still went up to 19.7 when I arrived. When I got back home, the gauge read 21.1 average mpg's. The dang thing worked!
I calibrated the gauge last week for distance and mpg's, so these readings should be pretty accurate. Very pleased with the outcome.