technically, oh tire guru, i don't think they would all wear out a the same time unless you pulled them at exactly the right moment. i don't even want to try and figure that out but i see a red flag on that one.

 

When you change tire sizes and live in most areas, that is the best way to do it. You do not have to worry about limping around, especially when you drive mainland distances.

If you are on a smaller island, you may get away with just about anythng for a spare or even no spare if the distances are that short. With all the instant fix a flat canned stuff they make these days.

I was stationed in Key West Florida for the last two years of my time in the Navy except when they would send us to sea. Key west is 3 miles wide and 5 miles long.

 

Actually, I do change them at just the right moment.

Crazy Kurds Changing Tires while the car is moving - YouTube