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- From: rhoades@ll.mit.edu (Captain Chaos)
- Newsgroups: rec.autos.tech
- Subject: Re: Tires: BFGoodrich vs. Goodyear
- Message-ID: <1993Jan6.001217.8933@ll.mit.edu>
- Date: 6 Jan 93 00:12:17 GMT
- References: <1993Jan04.204343.23137@eng.umd.edu> <1993Jan5.160238.25695@elroy.jpl.nasa.gov>
- Sender: news@ll.mit.edu
- Distribution: usa
- Organization: MIT Lincoln Laboratory
- Lines: 33
-
- In article <1993Jan5.160238.25695@elroy.jpl.nasa.gov> Al Mark <amark@inst-sun1.jpl.nasa.gov> writes:
- >
- >Don't fall into the trap of looking for tires with higher treadwear
- >ratings. These ratings are determined by the tire manufacturer....there
- >are no comparitive standards in the tire industry. Generally, the tire
- >manufacturer is honest, however treadwear is related to
- >"softness/hardness" of the tire.....i.e., the lower the rating the
- >"softer" the rubber compund. The "softer" the tire, the more adhesion.
- >
-
- I think it is the Comp T/A HR/VR with the 340 rating -- other T/As may
- have different numbers.
-
- My understanding is that the treadwear number is a reference number, compared
- to a standard tire (whose treadware is 100). What's non-standard in the
- industry (unregulated) is the 'standard' tire. So I'd expect that each
- manufacturer is indeed self-consistent, but that due to differences in,
- say, Goodyear's 100 tire and BFGoodrich's 100 tire, the ratings for
- different brands are difficult to compare.
-
- On the other hand, I think temperature/traction ratings are standard,
- and you should go for A's in both.
-
- For a reference point, I have 195/60-15 Comp T/A HR4s on my Mazda, and have
- put 40,000 reasonably aggressive miles on them. As a result of infrequent
- rotation, two are worn out (and were worn out probably 5k ago), and two
- are fine (another 10k? not sure). I am trying to decide on the replacements
- as I type this. I'd wanted to switch to a non-all-season, but I am wary
- of mixing tread-patterns and don't want to pop for 4 tires while 2 are
- still good -- advice?.
-
- Andrew
- rhoades@ll.mit.edu
-