by Chuck Boyer
(Evansville, WI)
I am just now having my second set of CS4 Touring put on my 09 Optima. These are by far the best tires I have owned. I had over 60k on the first set and if we didn't have a blizzard on the way I would have driven them for at least another 15K.
They have been excellent in snow and wet and were very quiet until over 50K when they picked up a little noise as would be expected. One front tire did pick up a thump at 25K and was moved to the rear but it is very likely that it took a pothole hit.