UTQG ratings
Thread Starter
Member
Joined: Oct 2002
Posts: 107
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From: San Diego, CA
2001 E55 AMG
UTQG ratings
What has been your experience with the UTQG ratings of tires?
I seem to have a gross inconsistency on my hands and cannot explain it:
BF Goodrich Super Sport A/S (on E55 AMG) (UTQG 400): not holding up well at all
Bridgestone Turanza ER30 (on BMW X5) (UTQG 140): love them, holding up wonderfully
This seems backwards to me; am I missing something? (I drive both vehicles similarly, btw)
I seem to have a gross inconsistency on my hands and cannot explain it:
BF Goodrich Super Sport A/S (on E55 AMG) (UTQG 400): not holding up well at all
Bridgestone Turanza ER30 (on BMW X5) (UTQG 140): love them, holding up wonderfully
This seems backwards to me; am I missing something? (I drive both vehicles similarly, btw)
MBWorld Fanatic!
Joined: Jun 2007
Posts: 1,856
Likes: 7
From: Socal
07E63, 12E350, 08997TT, 16SiennaSE
What has been your experience with the UTQG ratings of tires?
I seem to have a gross inconsistency on my hands and cannot explain it:
BF Goodrich Super Sport A/S (on E55 AMG) (UTQG 400): not holding up well at all
Bridgestone Turanza ER30 (on BMW X5) (UTQG 140): love them, holding up wonderfully
This seems backwards to me; am I missing something? (I drive both vehicles similarly, btw)
I seem to have a gross inconsistency on my hands and cannot explain it:
BF Goodrich Super Sport A/S (on E55 AMG) (UTQG 400): not holding up well at all
Bridgestone Turanza ER30 (on BMW X5) (UTQG 140): love them, holding up wonderfully
This seems backwards to me; am I missing something? (I drive both vehicles similarly, btw)
MBWorld Fanatic!
Joined: Apr 2010
Posts: 4,437
Likes: 43
From: PDX
1999 C43, 2008 P30 E63, 2014 SQ5, 2024 Model Y Performance
The assigning of UTQG grades is done solely by the tire manufacturer. In many cases, this has resulted in the UTQG grading system to be more of a marketing tool than was originally intended.
It is legal and permissible for a tire manufacturer to give a particular tire line a lower treadwear grade. For example: If the highest treadwear grade in a manufacturer's line up is 600, then a tire line with a lower treadwear test result might receive a grade of 400, instead of the 480 it could possibly receive.
The manufacturer can rate the tire at any rating they want as long as it doesn't overstate the grade. This could explain why your tire with a lower UTOG rating is holding up better than the tire with the higher UTOG rating. The tire with the lower rating could actually be higher...
It is legal and permissible for a tire manufacturer to give a particular tire line a lower treadwear grade. For example: If the highest treadwear grade in a manufacturer's line up is 600, then a tire line with a lower treadwear test result might receive a grade of 400, instead of the 480 it could possibly receive.
The manufacturer can rate the tire at any rating they want as long as it doesn't overstate the grade. This could explain why your tire with a lower UTOG rating is holding up better than the tire with the higher UTOG rating. The tire with the lower rating could actually be higher...
MBWorld Fanatic!
Joined: Apr 2010
Posts: 4,437
Likes: 43
From: PDX
1999 C43, 2008 P30 E63, 2014 SQ5, 2024 Model Y Performance
Planning on installation after I get back from vacation, I should be back 8/13.
I have had these headers sitting around FOR EVER and I have a Eurocharged ECU tune waiting to be installed. I'm soooo close to the end, Kleeman headers, random technology cats, and ECU tune and I'm done with the C43 for now.
Then I can start saving for my W210 E55
Sorry for the thread jack...
I have had these headers sitting around FOR EVER and I have a Eurocharged ECU tune waiting to be installed. I'm soooo close to the end, Kleeman headers, random technology cats, and ECU tune and I'm done with the C43 for now.
Then I can start saving for my W210 E55
Sorry for the thread jack...
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Super Member
Joined: Apr 2011
Posts: 998
Likes: 4
From: Central Connecticut
86 190D (Exported to the Nerderlands), 87 300TD (Sold), 82 Ford F150 3spd, 99 E300D (RIP), 02 E55
Planning on installation after I get back from vacation, I should be back 8/13.
I have had these headers sitting around FOR EVER and I have a Eurocharged ECU tune waiting to be installed. I'm soooo close to the end, Kleeman headers, random technology cats, and ECU tune and I'm done with the C43 for now.
Then I can start saving for my W210 E55
Sorry for the thread jack...
I have had these headers sitting around FOR EVER and I have a Eurocharged ECU tune waiting to be installed. I'm soooo close to the end, Kleeman headers, random technology cats, and ECU tune and I'm done with the C43 for now.
Then I can start saving for my W210 E55
Sorry for the thread jack...
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