|
It may depend on your tire. I have some 215/40/17 sport tires on my car rated at max 50psi. Running at just a couple of PSI below max they went bald in the middle first and after lowering the PSI down to around 40 I notice they have a slightly cupped shape now, like the diagrams at NTB show.
If I'd been driving harder, more often like most sport tire owners I might have worn down more of the edge and have more even wear. All things considered I probably increased the life of the tire because now at 40 it's going to wear on the edges faster than in the middle. Is this good for the tire, or safe? Not qualified to say. Have I saved anything on gas, maybe? Does the car feel like it rolls a lot better at 40psi and up? Definitely. Just my 2 cents.
|