So, I just bought my 4th set of tires for my 2012 Touring Elite after 79k miles. The first two sets were the OEM Michelins, the third set were Pirellis, and the current set are Yokohamas. Each set has lasted between 22-26K. The van is aligned each year and tires rotates every 5k miles. Very interesting stuff. The only good news is that discount tires prorates/ honors the mfr's mileage warranty which ends up costing me around $350 per set.