OEM tires have always been bad 99% of the time, Expected nothing new here.
The tire manufacturers have 2 choices: Either supply the tires the OEM requires or supply nothing at all.
Supplying tires to an OEM is good business. It is steady and it is easy - same tire day after day for 3 years with delivery on a regular basis.
Warranty? Basically none. No mileage warranty, and any vibration ought to be handled by the vehicle dealer.
CKN said:.......Yeah, I know the tire guys say that customers choose the brand that comes with the car (most of the time) but that hasn't been my experience.
Actually, the OEM selects who will be supplying the tires and once decided, that's it. A guy buying a new car has no choice as to what tire comes on the vehicle (except to say there are a few exceptions and there is always the possibility of negotiating a different set of tires as part of the bargaining process.)