91 Accord SE Automatic with 170,000 on. Just bought recently.
Run on 87 octane
MPG - I just got a 25.7 mpg driving to work up and down a few hills (10 miles) with a 10 mile flat stretch of 40-50 MPH.
Range - with a 17 gallon tank I can easily break 400 on a tank. It was not quite (1/8 " to go) hitting the red at "E" yet and warning light had not come on either. Used 14.4 gallons & went 370 miles.
This was all done with a VERY light foot on the pedal and car in perfect state of tune. Not bad, considering the car is only rated at 23 & 28 I think.
On a trip (which I have never done) I should be able to get at least 29-32 I would guess??