300 miles was all highway but at average speed of 80mph....and 80 in the city. I never measured my mileage so you can tell me if thats good or not?
Thanks.

...380mi? Not bad. I'm getting 345 from my 20v with modified exhaust K&N filter and 8mm wires. That's rough country roads "spirited" driving. I'm also filling up before the computer gas pump comes on. I think i could squeak 370. If your tank is 17+ gallaon capacity you should get 420+ all highway.

i like driving like a wuss

safety first

380mi is pretty good for a V6.

My CQ would get 350-450 (gets 200-280 now), the 5kq gets 400+, and the 5ktq would get 500-700 (no joke!).

Are your cats relatively new? If so did you notice an improvement when you replaced them?

On the other hand, if you sautered in universal sensors, you probably have a bad connection on your signal wire (black) somewhere.

We just did A_90's O2 sensors, and he gets good mileage.. Butt them, then tug lightly at the wire to see if it's in there properly.. Then when you're done add the electrical tape so it's a sealed connection

The farthest I ever let it go was 385, with 87 in the tank. BTW, My O2 sensors are nowehere near new!

I thought these cars were getting 20MPG according to manufacturer specs. hmmm....

I changed mine (butted) and still can't go over 300...

What is going on with the coupe? Why do you think the mileage is soo bad? Then again if you knew what was wrong it probably would have been fixed by now.

EVERYONE LET ME KNOW IF THEY SEE A COUPE FOR SALE IN THE MN/WI/IA AREA!!