TK, that's some pricey tires! I get all four on most of my vehicles for that. No 55,000 warranty, either. Mail route, I get 10-15,000 at best, but probably 30,000+ on the others(Unless I get un-repairable sidewall thorn leaks on the trucks).
Summer finally settled in here, forecast mid-upper 90's all week, "heat index" well into the 100s. Dragged the 2 "window shakers" out of storage, blew off the dust with an air hose, stuck them in the windows, and now enjoying nice cool air. One 9,000 and one 10,500 BTU units do a decent job in this 1920's house-unless you're doing a lot of cooking, canning, etc.