This website will tell you everything you need to know about gas and diesel prices nationwide for each state and city. It also has a trip planner on it to help you fuel along the way. I run 5 diesel service trucks so finding fuel at the best prices is important to me. Sometimes fuel prices vary as much as 25 cents a gallon while the stations are only a few miles apart. http://gasbuddy.com/
Ours are pretty much the same in NW Wisconsin as yours, Springer, $3.54 for unleaded. And now another snow storm coming, so it'll be even longer before I can start riding to work. I'd much rather be getting 42 mpg now instead of whatever our car gets. But alas, I have no snow tires for the bike .
3.49 at most stations for 87, 3.66 and 3.75 mid/premium, diesel is 3.75 stays around what premium is. Can't find any local stations without alcohol in it.
I want a diesel and put veggie oil system in it... If it runs I should go that way, can't wait just need 50 grand on the truck I want....lol...