2007 Camry LE tire cupping

[toyo]

My 07 Camry LE tires are cupping at 11,000 miles.  I brought it to the dealership, the told me that it's normal and that I "Have To" rotate the tires every 10,000 miles.  I suspecting that it's my strut is causing it.  I check my strut, 3 out of 4 have oily film.  The dealer told me that the oily film is normal.  They will not replace the strut or tires.  Have anyone experience these issue before?  If you have, please advise me how to get it fix or what I have to do to get it fix. 

[gmtech10]

I work at a Chevy/Toyota dealership, and I see a lot of vehicles with tires that are totally worn out at 25000 miles because they have not been rotated enough. Suggested alignment angles are not typically 0 degrees, meaning that even if your alignment is perfect, your tires will wear unevenly if they are not rotated. You cannot over rotate your tires. Toyota would suggest you rotate your tires every oil change, which toyota recommends to be every 5000 miles. Also, the oily film on your struts is normal, it is called weepage and will not effect the performance of your struts. The dealership cannot replace the weeping struts because every part that is replaced under warranty, has to be returned to Toyota for inspection and then if it is approved, the dealership gets reinbursed for the cost of the part and the labor.

I am sorry to be the bearer of bad news, but i see it every day. the good thing is that you only have 11000 miles on the tires, so with proper rotation, they will straighten out. Oh, and dont drop the dealership just because of their limitations set by the manufacturer, dealership service is better... you get what you pay for. Just the same as everything else.