My wife has slashed another rear tire on her '16 E400 sedan. Both rear tires were replaced at around 12K (around town) miles. The rear size/model is ContiProContact 265/35R18. The left rear was replaced again at around 16k? last year due to damage from losing pressure on the highway (posted about it here), now at 26K the right rear was cut by debris. The tire we pulled off looked totally fine - aside from the slash. In my mind, it looked like a good tire with deep tread. I received the replacement and it has significantly deeper tread. If the new tire is 10/32nds, I'm guessing the old one was probably 5/32nds. The snow/fine siping is gone, but the large tread blocks remain - the treadwear bars are almost half as tall as the tread. I'm curious how much difference is acceptable on a car like this (or any 2WD car on the driving axle)? Use is now a mix of a 40 mile round trip per day through town, 5 days a week and a 400 mile round trip every Saturday on the highway (~80+/- 5MPH).
I have never liked these tires, but when the rears wore out, the fronts were (and still are) good(ish). If I had realized that there was such a disparity between the two rear tires, I probably would have used it as an excuse to replace all four with something that actually stuck to the road. These look 'sporty', but when you push it, they plow and/or spin, and they don't last very long with regular driving. Compared to my similarly sized Pilot Super Sports, these are louder, don't stick as well, are more expensive, and don't even last as long. Now I've got one new one and three halfway worn out tires.
Now, the question is: do I need to replace the other rear. We don't see snow ever, but heavy rain is frequent. I'm pretty sure her car has an open rear diff. I know in the past it was common to see cars wear out the right rear tire faster than the left rear, I don't recall any issues related to that, but cars and tires are a lot different now.
I have never liked these tires, but when the rears wore out, the fronts were (and still are) good(ish). If I had realized that there was such a disparity between the two rear tires, I probably would have used it as an excuse to replace all four with something that actually stuck to the road. These look 'sporty', but when you push it, they plow and/or spin, and they don't last very long with regular driving. Compared to my similarly sized Pilot Super Sports, these are louder, don't stick as well, are more expensive, and don't even last as long. Now I've got one new one and three halfway worn out tires.
Now, the question is: do I need to replace the other rear. We don't see snow ever, but heavy rain is frequent. I'm pretty sure her car has an open rear diff. I know in the past it was common to see cars wear out the right rear tire faster than the left rear, I don't recall any issues related to that, but cars and tires are a lot different now.
