More than 48,000 miles, first flat yesterday. Tread looks good, but rub bars indicate new tires by about 50,000. Mostly highway, some gravel, some farm fields. On a two-wheel-drive and stopped only once by (friends uphill driveway with ice here in Iowa). The tires seem noisy on warn concrete. Overall I consider 50,000 miles very good on these OEM tires. I tend to run a little fast, but brake lightly. I do a lot of highway driving on rural roads. Not much stop and go.