View Single Post
  #17  
Old 12-09-2012, 08:40 PM
Supercourse Supercourse is online now
Officially Welcomed to the 'Fest
Location: British Columbia, Canada
 
Join Date: Feb 2008
Posts: 3,166
Mein Auto: 2004 X3 2.5i
From TireRack's technical info:

The problem with UTQG Treadwear Grades is that they are open to some interpretation on the part of the tire manufacturer because they are assigned after the tire has only experienced a little treadwear as it runs the 7,200 miles.
This means that the tire manufacturers need to extrapolate their raw wear data when they are assigning Treadwear Grades, and that their grades can to some extent reflect how conservative or optimistic their marketing department is.
Typically, comparing the Treadwear Grades of tire lines within a single brand is somewhat helpful, while attempting to compare the grades between different brands is not as helpful.


Sounds similar to the problem that Kia has in proclaiming their fuel consumption ratings?
Reply With Quote