I guess it was last week, it was $3.099 @ Costco, likely won't need to go again until after New Years... 38 gallon tank, plus not much tripping, no towing, so it lasts me a while... Average for this '06 F150 Crew Cab, is 13.2 mpg over the year, but mostly short trips...
Solar & a Tesla could do better... Or a Volt... But, tough to tow or carry lumber in them!
- - Prosecute, Prosecute, Prosecute 'em ALL!