The first few gas tanks I did about 60 mph on the highway, and got 32+ mpg. I had become used to that speed in my CR-V, and it helped my CR-V get much better gas mileage. This last gas tank with the fit, I'm doing 70 mph on the highway, and I'm getting 35+ mpg. So the choice speed for a fit is more around 70 mpg rather than 60.

 

What's your model and transmission?

 

2013 Fit Sport AT

 

I used to drive a 150 mile commute every day for 5 1/2 years. For the first 4 years I drove a 2004 Scion xA doing an average for that 4.5 years the Scion got 39.86 MPG, as good as 48 MPG and as bad as 34. This was driving from 7000 feet above sea level up to 9650 feet and down to 6500 feet and then back again. The Scion is a 4 speed auto. When I got the 2012 Auto Fit my best millage was 38 MPG and my worse was 31MPG over all average was around 34 MPG. Both cars run a 1.5l engine both are 16 valve variable valve timing and the Scion weighs a little more then the FIT and is not nearly as aerodynamic as the Fit and has 4 HP less then the FIT yet gets much better MPG. Also the Scion is a 4 speed auto and the Fit is of coarse a 5 speed auto. So there is no reason that would seem to make the Fit get poorer MPG also the Scion now has 180,000 miles on it and still averages 40 MPG. As a side note I also drove othe cars over that pass that's why the Scion only has a 180,000 Miles my total mileage for that 5.5 years was just a little over 300,00 miles. I drove a Ford Ranger, Jeep Wrangler, Toyota 4 Runner and a Subaru. By far the most enjoyable drive was with the Scion and the Honda a close second and the Subaru the worst.

CAD-Man

 

Saying a scion xa is more fun than a fit automatically discredits anything you say. You don't get cars.

 

^xA has higher final drive ratio and higher top gear ratio, that is why.

 

Kind of a harsh comment. I probably have more miles in a Automobiles then you can imagine. A Fit is a fun car to drive I will not dispute that but for the kind of mountain driving in the snow on un-plowed roads where the snow maybe 6 to 10 inches deep the Scion did just fine. My idea of a really fun car is a VW GTI with a 24 valve VR6 and a 6 speed manual. I drove one of these for a few years, with a top end approaching 140 MPH that is a fun car.

CAD-Man

 

Aerodynamically it looks to me to be a tie between the Scion and the Fit. Perhaps the Scion has a smoother underside, which could make a significant difference in highway MPGs. Plus as others have noted, the gearing could be different. the Fit is a "city car", with gearing targeted more towards 30-50MPH average speeds than for 65-80MPH speeds.

And while I find the Fit to be very entertaining to drive, it can get a bit tiring during long stints at highway speeds. The slightly odd driving position, combined with a not exactly quiet interior, wear me down after a while.