Low mpgs

[Emt364350]

2001 completly stock I'm only getting about 13 mpg and I do a lot of highway driving at 70mph and I tried being light on the skinny pedal, balance rates are good, any ideas on what I should look for

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[six5creed]

My bone stock '02 didn't get much better than that until I put a tune on it, it helped it almost 4 MPG's if I drove it like I should.

 

[roxyfever]

What size tires? Are you up north an have they started winter fuel? Do you idle alot? Last time filters have been changed?