Got 47.4 mpg in the Civic this weekend on a trip up to the Toledo, OH area. Did not even have a chance to do the grill block and some minor aero things before the trip... But definitly happy with the tank. The GPS and its "less fuel" routes could have been better at times (like when it took me through the ghetto of Lima where I was stopped by like 12-15 stop lights in a 25 mph zone).
Just had the best tank ever in the Harley! 49.81 MPG! I wonder if this has anything to do with me buying midgrade instead of premium at my last fillup? I didn't think my riding style was all that different on this tank than others.