Running 40 in the fronts shouldnt wear the center out. You would need more psi than that to make a difference. I have run 40 front 35 rear for the last 250,000 miles on my tbird and all 8 sets of tires including snow tires wore even all the way across.
I think someone else hit the nail on the head about what it says in the owners manual about the milage during break in period.
I think someone else hit the nail on the head about what it says in the owners manual about the milage during break in period.
