terramir

Hey I got my new (er) car a 1992 mustang LX convertible 4cyl efi, need some possible causes for the low MPG I am getting it's better than my old 86 with a carb but not much better getting 11 to 15 in the city and 20 to 25 on the freeway. just wanted to ask if you guys can list possible causes. I just dumped that injector cleaner stuff in my tank and I hope after this tank is gone there will be some improvment but I figure that it not the only problem. I also know since the tires on this car are bare the air pressure is lower than recommended. (saving up money for new tires) but that still can't account for this low an MPG so I figure there are some other problems (and I already replaced the air filter cheapest thing to do).
so please give me some hints.

terramir

terramir

plz someone let me know there experiances because I really need some hints here
terramir

bigwille

I have a 2000 mustang vert, I had the same problem and recently did a tune up for the 60,000 mile maitenece. It seems a little better but not a whole lot yet.. I let you know if it gets better. but anyway get a fuel filter, plugs, and wires which I didnt do by the way.