I had to replace a single tire on my AWD Honda CRV. While all tires are the same size, manufacturer and model, 3 tires have about 8 1/2/32nds of tread compared to 10-32nds on the new.
Honda seems to have no objective requirement for tire tread uniformity for its AWD vehicles, but as my difference is within Subaru and Audi standards, I think this is a non-issue. But it did get me to thinking about the effect of tire inflation on rolling circumference.
My question is, in my case could the rolling circumference difference between new and old tires be eliminated by varying tire pressures? For example, while Honda specs 33psi all around, would running the old tires at 36psi and the new tire at 33psi eliminate some/all of the difference?
Honda's TPMS system is based on comparing tire rotations, so lower psi in a tire must affect circumference. And, as rolling circumference seems to be a function of radius as measured from the axle center to the ground it seems obvious more pressure would increase the radius and the rolling circumference. But nothing I've been able to find supports this notion.
Again, I don't believe my situation is a problem, but in more extreme situations altering tire pressures (within limits) is sure more appealing than buying 4 new tires.
Thanks for any thoughts.
Honda seems to have no objective requirement for tire tread uniformity for its AWD vehicles, but as my difference is within Subaru and Audi standards, I think this is a non-issue. But it did get me to thinking about the effect of tire inflation on rolling circumference.
My question is, in my case could the rolling circumference difference between new and old tires be eliminated by varying tire pressures? For example, while Honda specs 33psi all around, would running the old tires at 36psi and the new tire at 33psi eliminate some/all of the difference?
Honda's TPMS system is based on comparing tire rotations, so lower psi in a tire must affect circumference. And, as rolling circumference seems to be a function of radius as measured from the axle center to the ground it seems obvious more pressure would increase the radius and the rolling circumference. But nothing I've been able to find supports this notion.
Again, I don't believe my situation is a problem, but in more extreme situations altering tire pressures (within limits) is sure more appealing than buying 4 new tires.
Thanks for any thoughts.