I have run flat tires on my 2005 Sienna (purchased October 2004). I also bought a set of winter tires & rims) in December 2004 and since then I am alternating them 6 months of the year. Have currently 21,000 miles on my vehicle. The dunlop tires are almost worn out, although I probably put on them mo more than 12-13,000 miles. Part of the reason I believe is that when I bought the car(even when I test drove it) I noticed a rough ride and a pull to the left, but could not wait for the dealer to order another car, so I took it home (I bought it from a dealer out of town). Also I was blaming the tire thread geometry for the rough ride, and the dealership offered me to change the tires for the cheaper ones Bridgestone, but I had to pay like $80 for the operation, so I decided not to. The rough drive continued until I decided to take it to my local dealership who found out that it was misaligned. The did a free alignment but the car would still pull to the left. This, I was told, was normal, since the tires had been worn unevenly, so now they had to get the normal wear again. Now the car no longer pulls, but this comes a the cost of having excessively worn tires. I see that this is not an unique case.

- Colorado Springs, CO, USA