OK! For the first 120 miles the car's computer says we are getting 28mpg overall, and for most of my trips this week -to and from work, to and from TKD- we have been getting 32-33mpg. Which has actually raised the overall mpg from 27 to 28. Meanwhile, I am learning all about how diesel engines are different from gas engines, which I had no idea about. And New Cellmate's husband is making me paranoid about buying fuel, as HE believes he had two gas tanks rotted out by bad fuel. Need to ask my uncle if he thinks that is a real thing, or just in the guy's head.