Its officially then end of the world, its hit the $4.00+ mark in El Paso.
I got an email the other day about how to save gas, and one was to not buy gas during the day---to either fill your tank up in the morning or in the evening when the temperature is cooler. At first I didn't think it mattered until this last time I filled up my tank and got a lot less mileage!!
So i only looked at the first link, and it contained a little of the same information----mainly about how gas expands at higher temps. Although snopes says its false, when you have temps of 100+, it there has to be some expansion, the tanks can't stay cool the whole time.