Rotating different sizes tires

MattF · #1 (**permalink**) 07-03-09, 07:49 PM

I just realized that my dealer rotated my different size (235/50/18 and 255/45/18) tires front to back on my last service visit (~500 miles ago).

My question is, could this have caused any sort of damage or is it no big deal?

Thanks

EChas3 · #2 (**permalink**) 07-03-09, 08:00 PM

See my post #5 in:

http://www.cadillacforums.com/forums...-you-have.html (What is largest tire size you have put on 07-09 STS?)

jpedano · #3 (**permalink**) 07-04-09, 01:18 AM

wont cause any damage i had my 235 on the back before. now i have changed all my tires to the 255/45/18 on all4 tires~! no worries.

MattF · #4 (**permalink**) 07-04-09, 10:25 AM

Thanks guys.

Guess I won't make a big deal out of it....just have the dealer put them back!

EChas3 · #5 (**permalink**) 07-04-09, 02:15 PM

Some manufacturers don't recommend rotating tires. While it does extend the life of the tires, one may experience poorer performance for a period of time afterwards. Proponents of this view say that a wear pattern forms high and low spots on a tire and after rotation your contact patch is reduced.

IMHO, longer tire life more than offsets whatever truth there is to this theory. If I underestimate the facts, I would counter that tire rortation should be performed even more frequently to mitigate any performance concerns. I will probably go with 255/45/18 all around on my 2006 when the time comes.

I am inclined to accept that staggered and directional tires should probably not be rotated.