The statement that "any manufacturer can declare whatever value they want" in relation to UTQG ratings is not entirely accurate. While it is true that tire manufacturers are responsible for testing and grading their own tires and reporting the results to the US Department of Transportation (DOT), the ratings are based on standardized tests and methods.

The UTQG treadwear rating is benchmarked against a standard reference tire (SRTT) with a treadwear rating of 100, which provides a standardized baseline for comparing the expected lifespan of different tires. Therefore, the manufacturer cannot simply declare any value they want for the treadwear rating, as the rating is based on how many miles a tested tire lasts compared to the SRTT.

It is also possible to compare the treadwear ratings of different tires and manufacturers, as long as they have been tested using the same SRTT reference tire.

The example provided in the statement is correct in that the UTQG treadwear rating is relative to other tires within the same brand and is not a standardized measure of tire life that can be directly compared between manufacturers. However, this is not because there is no standard reference in the UTQG treadwear rating, but rather because each manufacturer is allowed to declare their own ratings as long as they meet the standardized testing requirements and are benchmarked against the SRTT reference tire.

Overall, while the statement contains some inaccuracies, it is important to keep in mind that the UTQG rating system provides a standardized method for grading tires, but the actual lifespan of a tire can vary depending on a number of factors, including driving conditions, maintenance, and driving style.

This was the main intention. Unfortunately a lot of companies have found way to abuse the system and combine with the difficulty of testing wear consistently and the test tolerance it is really hard to prove them wrong.

hi, my factory load index tyre is 89 with recomended 2.2 bar.if im going to use 91 or 94 load index tyres, how much bar should i pump my tire respectively?

It is recommend to rotate tires every 10000km, while at it, do we have to balance them as well?

How about for alignment at what interval should we do it? Thanks!

Which tries are more critical to be replaced? The front 2 or the rear 2.
Assuming you have budget only for 2 tires at a time? Which is more critical?

new rear, old rear switch to front

I practiced do all 3: rotate, alignment & balancing every 10k km intervals for all my cars

good to know. how much usually does this cost you?

Question, is there a reason to get all season tyres compared to getting summer tyres in Malaysia since we don't have winter here?

Depending on the car.

Small car, up to RM60

Big car, up to RM120

XM2+ or CC7, which is the better tyre?

If money no issue. I put my trust on XM2+

But previously I was using XM2, after 3 years, the tyre is noisy as hell...

That's why I am afraid to use XM2+ due to the noise level after a few years.

My preference was not related to noise, but more related to grip & braking performance. Michelin tires is known to retain similar levels of braking distance when new or worn.

CC7 grip levels could be meh if it is only 5% improvement than CC6.

Slippy days with that tire.

Even front wheel drive?
Any explaination behind it?

https://youtu.be/b-W6HQa-BG8?t=118

some explanation on it

Guys,

i'm currently using Civic FC with PS4 at stock sizes, 215/50 R17. But since PS5 doesn't have that size, they have only 215/45 R17 and 215/55 R17, should i go for 215/17 R17 for PS5..?

There are a lot of reports feedback PS4 does better overall compare to PS5, FYI PS5 is not a replacement for the Michelin Pilot Sport 4 AND 4S.

https://www.tyrereviews.com/Article/What-is...lot-Sport-5.htm

The only advantage PS5 over PS4 is only the tread life, the rest PS4 did better overall performance.

The biggest changes to the PS5, when comparing it to the PS4, seem to be vastly improved wear. Michelin have always been one of the leaders in wear, but it's fair to say the PS4 fell short of its usual standard, often performing averagely at best in wear tests.

Unfortunately, increased wear usually opposes grip during development, which means a huge jump in tread life like this, often reduces grip.

PS4 = High performance, high wear
PS5 = lower performance, lower wear

I will stick back to PS4 since want buy this performance tire is for what it is intended.

This post has been edited by littlefire: May 2 2023, 11:24 AM

Better go for PS5 225/50R17 size.

Only 1.6% larger than original size.

If go 215/55R17, the size will be 3.1% larger than original. Too big more than 3%. Speedometer akan ada lari

if so, then have to search for ps4 stock. my usual tyre shop say then dont have ps4 stock anymore when i checked with them last year