At least in the US, we have Uniform Tire Quality Grading [0]. According to Consumer Reports, which tested at least 47 tires, "most tires should live up to thei

At least in the US, we have Uniform Tire Quality Grading [0]. According to Consumer Reports, which tested at least 47 tires, "most tires should live up to their mileage warranty claims"[1]. I've seen "high-quality" tires with a very low treadwear rating and I've seen "low-quality" or "cheap" tires with a very high treadwear rating. But the press release only mentions "high-quality" without defining "quality" at all. Which adds to the dubious nature of the claims. [0] en.wikipedia.org/wiki/Uniform_Tire_Quality_Grading [1] https://www.consumerreports.org/cro/magazine/2015/09/the-truth-about-tire-treadwear/index.htm https://www.consumerreports.org/cro/magazine/2015/09/the-tru...