Having to Buy Tires.

[Ljohnsaw]

I've been going to America's Tire for probably 30 years or so. When buying just two, they always put them on the front. Their reasoning is you do 90% of your braking on the front and you steer with the front so you need your best tires up front.

I generally get a set of 4 and put the best old one on the spare. If you only buy 4 and rotate just those, you never get the rated milage. 

[doc henderson]

Yes, and if it is north of you, in October we will error on the side of caution.