The exessive rear negative camber is wearing the rear tires down fast (only on the inner edge). When rotated to the front, because of the difference in camber setting at front, I am having road noise, it's like thumping or tire rubbing something. Most small cars have large rear neg camber include BMW, and some BMW owners reported the same problem. They said BMW manual recommend against tire rotation.

I don't know what to do.....seeking wisedom here....but leaning toward rotating back and not rotate anymore. If I continue to rotate, I would have noise, and ruining all 4 tires too.

what do you guys say?

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MomDelight live

 

Rotating the tire sooner might alleviate some of the noise, the actual rotation helps the tires wear back to flat (in theory).
I know I rotate mine every 6000 miles, so tomorrow will be the second rotation, but even then I don't see any adverse wear on the rears.
1 of our costumers 7 series BMW has wider tires in the rear, so I know they don't get rotated, but he complains about the wear on them, at least 2 to 1 with the fronts. Seems like you would expect more out of a 125,000 dollar car LOL

 

Rotate - just rotate them sooner. It sounds as though you might have too much negative camber dialed into the rear - have a good alignment shop check it out.

 

(...the BMW forum was from a google search, and their cars have same tires front/rear....)

Anyway, I did 1st rotation at 9K, a bit late. It's now 12k, mere 3k miles, the rear inner edge has worn, and you can see it clearly. The Toyo tires has 4 water channels, so there are 5 tread rings, the inner ring is visually lower after just 3000 miles.

I rotated them back today, and the tire noise went away......confirmed it's the tire...but I also foudn that the mount surface (wheel/hub) start to "rust"....I cleaned the surface with a small wire brush, but wondering if there's something we could do about it. Is there anything we can apply to the surface to prevent the oxidation of alloy wheel?

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