Head a few more blocks north of there, and use the Mobil at the corner of 436 and Hoeffner. They are usually one of the cheapest places around, and you can earn Upromise money there!

I didn't realize how empty my tank was when I dropped off my car last time, and when I left the parking facility, I asked where to get gas (it was also after 2 am) and the guy specifically steered me away from the Chevron. I didn't realize that my regular Mobil was open 24 hours or I would have never even asked.