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Gents,

Have anyone seen something like this? I just put a set of four new tires and after 4,000 miles the outside shoulders of my tires (front and back driver side) started showing some wear; the inner shoulders are fine and the tread itself does not show anything. Tires on the passenger side are fine externally but there is definitely some wear of inner shoulders on touch; I could not get quality pictures from the inside.

The car does not appear to be in accident (I bought used one) and I did not do any modification to it. At this time I increased tire pressure to 36/34 PSI front/back.
I did went for a full wheel alignment 10,000 miles before I put new tires and they did not find anything wrong - the % numbers were in green by Honda specs.

Would you be able to provide me with your opinion regarding this? Have any of you experienced this on your car?

Honda Accord 2006 SE

I can not post pics on this forum but I did ask the same question on Honda forum. Just in case if you do not mind to look:
http://www.driveaccord.net/forums/showthread.php?t=49472  

This isn't tire wear.  The difference is color is likely the difference in rubber compounds within the tire - nothing unusual - plus a bit of dirt in the mold when the tire was manufactured.  This combination produces a different appearance.

Nothing to worry about.