Maybe you need their "special" test tires to get the full 40K out of them.
http://www.autoblog.com/2016/02/26/n...-cheat-report/

 

2 sets. 40k miles now from different brands.

Ill be happy if I get 20k miles LOL

I ask a lot from my tires so when they are 1/2 they are beat. Considering my van, that is about as far as I want to go when you do 70-80 a lot.

I have a set of Westlakes, another supposedly, 'cheap tire' on my Grand Cherokee at they are at 30k and about ready to need replacement. Most would love my old tires LOL