Hi there, I have a 2.3 2001 galaxy and I have found it relativly economical to run.... I am getting around 26 mpg around town and 32 on a run (when I say economical I am comparing it to my last car which was a 4L Jeep Cherokee, anything is economical after the 12 mpg of that thing!!!) but I still think that my gal is reasonable on fuel for such a large car.