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My tires are going to stay in there installed position until car is traded or they are worn beyond serviceable limits. Tires take a directional set and high speed tires are more prone. I see no real benefit performing this task.
C6 tires were unidirectional and had a "rotation" arrow. C7 tires are bidirectional, but do have an "inside" and "outside." See Z51 tire pic below. I'm not inclined to cross axle rotate and reverse the direction of rotation. I've always been told that radials take a "set" and not to reverse rotation.
My tires are going to stay in there installed position until car is traded or they are worn beyond serviceable limits. Tires take a directional set and high speed tires are more prone. I see no real benefit performing this task.
Why would the manual and GM ask you to do this then?
I'm one of those "read the manual" guys. If getting my tires rotated every 7,000 miles allows me to get more miles out of them then I'm going to do it. Those things aren't cheap.
With use, tires will "cup." Rub you hand both forward and backwards across the tread of an old tire and you can feel the cupping. This is one of the reasons old tires become noisy. A Bridgestone rep at Barret-Jackson told me to rotate (side to side on non-directional tires) to reduce cupping and thereby reduce noise.
WELL.....obviously I'm no expert.....but one thing I do know is that by rotating from left to right.....without removing the tires and remounting them, which you shouldn't do as there is an INSIDE/OUTSIDE of the tires, the tires outside edge will remain the outside so they will be wearing the same edges due to cornering forces.....thus unless the dealers does it at oil change time for free.....it won't be getting done.
With use, tires will "cup." Rub you hand both forward and backwards across the tread of an old tire and you can feel the cupping. This is one of the reasons old tires become noisy. A Bridgestone rep at Barret-Jackson told me to rotate (side to side on non-directional tires) to reduce cupping and thereby reduce noise.
True. It's not exactly "cupping", it's more like a saw tooth pattern to the tread blocks. You feel it as you rub your hand fore and aft on the tread. Everybody hated the way C5 and C6 Goodyears got so noisy. But by crossing them regularly I was able to keep mine quiet for their whole tread life. On any tire with block tread, reversing the direction of rotation evens out the tapered wear pattern that naturally develops on each tread block.
Tire Rotation - yes or no?
