I would be careful using that technique. The overall diameter of the doughnut spare is designed to be the same overall diameter as the factory tire (at not intended for long-term use). Running a tire/wheel combo even 3/16ths different in overall diameter is enough to upset the AWD system. Even tires of the same "size" can have diameters different enough to upset the system.there are numerous discussion on this site. The space for the donut spare is not large enough for a regular rim and same size tire as on the car. I order a regular steel rim and plan to put a regular but smaller size tire on it. I plan on putting a tire ie regular that is the same dimensions of the donut spare. My thought is I would not be limited to the speed and distance limitation of a donut spare and I would have more options on replacing the flat tire. Not sure if it will work but thats my plan. One other option, which I have heard people discuss, it to put a normal size rim and tire but have the tire deflated and then pump it up when needed. Not sure is this will work.