Damn, $8 per gallon? I can see why you only drive the Beast only a few times a week or month. Might as well buy a Prius....
On a side note, I had my JTSVP underdrive pulley installed on Friday. WOW, what a difference the smaller pulley makes. My truck has a quicker response from a dead stop, or just cruising down the road. Put's a big smile on my face. And, sitting at a light, AC on full blast, and lights on, the alternator still puts out around 13.9 volts. The needle sits just at the left edge of the "14" mark at idle, and once driving, it's at 14 - 14.1 volts. Pleasantly surprised. If ya'll don't have one on your stock engine, I might recommend getting one, you won't be disappointed.
https://shop.jtsvp.com/product.sc?productId=665&categoryId=206