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Correct, treadwear ratings supposed to be consistent...
Posted by REM in Seattle

(# 4)

(more from REM in Seattle) on Sun, 14 Mar 2010 08:05:02
In Reply to: Re: baseline was supposed to be consistant, JimBlake

, Sun, 14 Mar 2010 05:52:11

However, several flaws in the treadwear rating system have made the treadwear ratings not very consistent. There are good write-ups on tire treadwear ratings on Tirerack, wikipedia, edmunds, etc.

- The manufacturers test their tires to their own standards that are supposed to mimic the government standard.
- The government treadwear test is based on a 8,000-mile road test. The total tire treadwear rating is extrapolated from the 8,000-mile test.
- Manufactures are free to rate tires lower that they actually tested for marketing purposes (but not rate them higher).

Posts in this Thread:

Tire Treadwear Temp/Traction rating?, B Millar , Sat, 13 Mar 2010 09:24:51
- Bridgestones, Gargoyle , Mon, 15 Mar 2010 05:46:50
- some performance/wear tradeoffs..., James, Sun, 14 Mar 2010 06:54:10
- About the Toyos >, Bill Davies , Sun, 14 Mar 2010 03:01:48
- Re: Tire Treadwear Temp/Traction rating?, LesH , Sat, 13 Mar 2010 15:37:03
  - Re: Tire Treadwear Temp/Traction rating?, steve, Sat, 13 Mar 2010 17:03:07
    - I had the ASX before, LesH , Sun, 14 Mar 2010 06:05:51
      - $70 rebate for Set of Bridgestones at Costco..., Wil W , Sun, 14 Mar 2010 21:46:59
        Costco road hazard is only 60 mths prorated wear, steve, Mon, 15 Mar 2010 10:10:28
        Um, that's five years, Bill Homer, Mon, 15 Mar 2010 10:29:38
    - One reason would be Bridgestone.., Noel , Sat, 13 Mar 2010 21:28:50
- One thing to keep in mind, JMF , Sat, 13 Mar 2010 12:41:41
- Treadwear rating is up to each manufacturer..., REM in Seattle , Sat, 13 Mar 2010 09:37:01
  - Re: baseline was supposed to be consistant, JimBlake , Sun, 14 Mar 2010 05:52:11
    - Correct, treadwear ratings supposed to be consistent..., REM in Seattle , Sun, 14 Mar 2010 08:05:02
      - Re: Correct, treadwear ratings supposed to be consistent..., JimBlake , Mon, 15 Mar 2010 08:52:21
        Tires don't wear at an even rate., Noel , Mon, 15 Mar 2010 12:08:57
        Re: Tires don't wear at an even rate., JimBlake , Tue, 16 Mar 2010 05:35:48
  - Well that's not particularly helpful then., B Millar , Sat, 13 Mar 2010 10:16:12
    - Buy name brand tires. There's a reason the, Noel , Sat, 13 Mar 2010 21:32:35
      - Re: Buy name brand tires. There's a reason the, simul8guy, Sun, 14 Mar 2010 15:01:42
        Re: Buy name brand tires., soccersaab, Sun, 14 Mar 2010 17:50:25
      - Thanks., B Millar , Sat, 13 Mar 2010 21:36:49
        Re: Thanks., NateWI, Mon, 15 Mar 2010 12:41:19
        sorry...meant 16 weeks, NateWI, Mon, 15 Mar 2010 12:52:34
        Re: Thanks., SWEDECAR , Sun, 14 Mar 2010 20:01:10
    - Tire talk is a lot like discussing politics & religion, THS, Sat, 13 Mar 2010 19:09:43
      - Re: amen, swede-murphy , Sat, 13 Mar 2010 22:12:54

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