Subaru: Noise: Tire Feathering?

I own a 2000 Impreza OBS. At about 45K km / 28K miles, I started getting a
funny noise on the left side, towards the rear. It's sort of a "spinning"
noise, which changes in pitch as I accelerate and decelerate from any
given speed.

Took it in to the dealer today, and I was told that the problem is due to
the tires "feathering". Ok... when I asked what the expected life is on
these tires - they're factory-issue BF Goodrich - I was told 70 K km.

Does this make sense, that with one-third of their life left, the tires
develop an annoying noise which the driver is supposed to put up for their
remaining life?

I've done a bit of searching on this topic, and it seems that feathering can
be due to the tires, the car, or poor maintenance (alignment, lack of
rotation, maybe tire pressure?).

Anyone else had this problem?

I've been the bad bearing route.... I'd take a feathered tire ANYDAY.
I did not like the Bridgestone RE92 OEM, so put on Michelin RAIN X.
They are still going strong , good tread life AND I do regularly
rotate the tires using the front straight back , rears X'd to front.
Air pressure always at 32 psi.

dn wrote: