I have gotten as much as 17 mpg average in the '56, '62, &'65 when they are in top shape, and I am mainly driving on the highway. The other cars seem to get around 12-13 doing the same type of driving. If I am just running around town in any of them, tank after thank of gas I get around 10 mpg. Paul In a message dated 4/8/2004 2:33:18 PM Eastern Daylight Time, Billimp68 writes: > Bill & Elaine, > > 10 to 12 MPG is about what you can expect for city, or stop & go driving, but >you might be able to achieve 15 to 17 on the highway. Of course, mileage >depends on several things, one of the most important is how you drive, another >would be the mechanical condition of your Imperial. Another point that is >seldom mentioned, low tire pressure and front end alignment, as both, if not >correct, will create drag and it takes increased power to overcome drag and >increased power means less mileage. There are more things that could be >mentioned, but > I will stop with this. > > Bill/Imp, 68's