Why is my fuel economy poor?
this has been bothering me for a long time now, but ever since I got this car the fuel economy has left much to be desired. on average i get around 21-23mpg, doing probably 80-90% highway driving. When I first got it, i put plugs, wires, crank sensor, fuel filter and a o2 sensor on it, NGK plugs, delco wires, delco o2.sensor.
the car runs just fine, I don't romp on it everywhere usually 70mph on the interstate.synthetic oil changes every 5k, regular air filter changes.
To be honest it is probably due for a tune up, it has been 60,000 miles and 2 years since I changed anything on it. But IMHO it should be fine right now, as this average fuel economy has stayed the same the entire time. to date the BEST fuel economy I ever got from it was 26mpg on a drive to Toledo, OH with the cruise set around 70 the whole trip.
I believe that the car has the 3.06 gear ratio. I don't know what I should expect out of it, but I think it is capable of more then 23mpg.