After learning the hard way about the downside of the donut spare on a 2002 AWD cross country, we have invested in a full sized spare and new rim. We've also managed to fit it into the wheel well area. Now the question is: how to rotate the tire so that all five wear semi-equally, since equal tire tread is the issue on the AWD system. We now have 5 Pirelli scorpion tires. Is there a way to rotate all 5, including the spare, so that they wear equally?