Big drop in FuelEcon

[Luna V 2.0]

Since I first got my car I've been getting 32 MPG. Which I've always thought was pretty good since I do mostly city driving and other than cutting the AC most of the time I don't do much else to boost the mpg.

Lately I've been getting 25 mpg (ouch!) and I haven't changed my driving habits at all, I still drive the same route to work. The only change is that I've gotten new tires, but my mpg was dropping before that anyway.

It's been a gradual change, and at first I thought it was just that maybe I was using the AC a bit more, but even then it's dropped too far in my opinion. When I got tints and I had the AC on all the time I was still getting at least 28 MPG.

Any ideas what could be wrong with the car? I have my "maintenance" done at Pep Boys so honestly as far as I know they probably do absolutely nothing on the car other than oil changes. So theres probably something that is wearing out and I wouldn't know.

And yes I know I should do my own maintenance but it's just so conveniant to drop it off during my lunch hour and picking it back up after work, now I'm paying the price.

Anyone got any ideas what can cause a 7 mpg drop? (and still dropping!)