Just want to get a rough idea on average, I've had mine for about 25k miles now and they seem to be holding up decently but that's not stopping me from starting to think about planning their eventual replacement.
FWIW, Apparently Vredestein doesn't sell the Quatrac Pro in a 225/60R18. However, they do sell a 235/55R18 that should fit well. That size would add an approximate +1 MPH (at 70 MPH) change to the speedometer reader. I'll be giving it serious consideration soon.That said, based on TR's & CR's testing, Michelin Cross Climate2s & Vredestein Quatrac Pro are the best you can get if driving in the snow is a concern and you are not interested in dedicated winter tires.