Charlie, to get this stuff, you may have to order online. Midway and Brownwell's sells it but I order direct from
http://www.kanolabs.com/ I think you save a few bucks too. If you go to the kanolabs website, click penetrating-lubricating oils on the menu on the left. A new page opens and Kroil/Aerokroil product is on the top. They have a risk free trial offer where you buy a can of Kroil, they offer a free can of Aeorkroil with your purchase. So if you buy a $7 dollar 8oz can of Kroil, you get a $11 can of Aerokroil free to try out.
Buying online from them you do get flyers in the mail about once a quarter. Unlike most junk mail, I find them pretty entertaining to read.