I also have been a faithfull BF Goodrich All-terrain KO user for 12-14 years, great winter tire, quiet on the highway, and I always get 2 years(around 60,000 km.) out of them before buying new ones. I just wore out my present set in 30,000 kms. driving no different from before. I complained to customer service and Michelin only offered a small discount off of the suggested list price which wasn't much different from the full price I paid at the tire store originally. A day later a customer survey arrived by email from Michelin which I filled out very negatively. The next day someone from Michelin head office phoned me and the best he would offer is for me to pay for a new set at 60% of suggested list which is about 70% of what I paid originally. I accepted this and will have the new set installed tomorrow and we will see if they last any longer than the present ones have. I'm hoping I just had a bad set, if not they will be the last set of All-terrains I buy.