Hi all from Dallas.
I have a 2000 Dodge Intrepid (in the garage - I am on the ball). I've been lurking for about 2 months. Before I found this site, I was getting consistently 21-22 mpg, mostly city (suburban) driving. In the past 2 months, I've aired my tires up to about 38 psi all around, and adjusted my driving style somewhat. I've gotten 24+ mpg on each of my last 6 tanks, and topped 25 yesterday
This is calculated the old fashioned way - reset trip odometer at fill up, and divide by total # of gallons purchased - I always fill up at same station, usually the same pump. Maybe I'll get a scan gauge soon.
I have 5 kids, so I need every bit of room this car has. If we all go somewhere, we take the wife's expedition.
I love reading about the aerodynamic mods ya'll do. This seems like the funnest part of eco-modding. But it really seems like the biggest gains are found in the "mundane" areas - slowing down, filling up tires, proper maintenance - boooooring.
Looking forward to the learning, and the saving.