I just purchased my 94 (3.5L) concorde with 115,000 miles on it recently for a daily driver. I noticed that the gas mileage is around 17-18mpg. The car should be getting better mileage than that. I plan on changing the plugs and wires tomorrow. Air filter looks good. And throwing in some injector cleaner as well. Anything else that will help? Im use to my dsm so throw out some ideas for me as well. Thanks.