With the extra tread depth, would the traction/treadware rating remain the same for the given tire?
Answer Dave, Let me do the last one first: 5) No, I would not recommend this. Your vehicle came with P metric tires and using tires with Load Ranges means they will be LT’s. The advantage you are seeking will be offset by the problems you’ll create. 1) Yes, higher psi will reduce the drag, but further increases beyond 40 psi suffer from the “Law of Diminishing Returns”. The improvement won’t be nearly as much as the improvement from 32 to 40 (which is beyond the 3 to 5 psi I normally recommend. 2) Yes, but again the big improvement is from 32 to 40 and much less after that. 3) Most of the stiffness comes from the pressure not the plies. 4) LT metric tires – and any tire rated as a snow or traction tire – is not required to have UTQG ratings. The additional tread depth isn’t that much of an improvement – Law of Diminishing Returns. There are a couple of other items I should mention. The rim may not be rated to take 50 psi. This is a 50% increase in pressure and that’s a substantial incr
