So I got my car brand new about 18 months ago, 2004 honda accord coupe lx 4 cyl. When I got it it had 4 bridgestone turanza tires on it. About 6500-7000 miles later the fronts were pretty much bald, so i bought 2 new toyo tires for the front, as the back 2 bridgestones were pretty much fine. Now im at 17k miles, so about 10k miles past the last tire change, and i had a tire rotation about 3k miles ago i think. Anyway the toyos went to the back and the bridgestones went to the front. Now the bridgestones are getting close to bald, id say probably like 25% or so left, and the toyos in the back are showing alot of wear as well. I figured these tires would last me atleast 20k miles if not more. My driving isnt really abusive at all, a bit spirited but thats about it. Never burn out, cant the car doesnt have any power lolol, and I dont do anything like auto-x or something similar. Anyone know what could be wrong to have them wear out so quickly?