180 Miles on a Full Tank Whats Wrong?

[Dtowncats]

The terrain you live in also accounts for mpg. I am seeing 200 miles a tank with 2.73s and I live in PA driving 16 miles to work(mostly HW). I went to OC, MA and got around 230-40 a tank.

 

[WhiteHeat306]

180 miles on a full tank would be awesome for me......only in my dreams

If I clock 3 figures on the trip odometer I am happy...I am in dire need of a chip and dyno tune.

 

[mattkimsey]

I just got about 375 miles with mixed city and highway driving. That is also waiting in line at McDonalds for 15min. My neighbor got 27mpg on the highway going to Atlanta.

 

[TheUser]

I only had about 1/2 a gallon left in the tank. Filled it up with 11.5 gallons. SO I know not to trust my Gas gauge any more.

The stock tank holds roughly 15 gallons, so you actually had about 3 1/2 gallons left...

 

[88GTtom]

dude, im getting 300 to the tank... do you have o2 sensors on that h pipe. I used to have an 86 that got $#hi++y gas milage but i thought it was because it was SD. I dont know... my car drives great and i am happy i get good gas milage. I am driving back to virginia next monday, ill let everybody know how many miles i get to the tank. tom

 

[90_Red_LX]

I get about 200 miles to the tank, have gotten up to 272 miles with a LOT of highway and some city driving. I drive mostly city and country style roads.

Do what Jrichker said and pull codes. Somethings not right.

 

[big_tiger15]

I get 180 miles to tank with my speedo that is off. I pass everyone on the highway when I go "55 MPH." My fuel gauge is screwy on top of it I can go 170 miles have a way past full tank. Go ten more and lil less of half a tank. Ten more and be on E. At least I get some kinda warning. I tried the Acetone in the tank, and it did nothing for mileage.