I just put on new Michelin Defender tires on my 2002 Odyssey with 207k miles. I was told initially that after new set of tires, I should always get a 4 wheel alignment. And that was my impression too over the years. So anyway, I scheduled a appointment with the dealership today and when I told them the reason for the visit - they said that if the van was driving straight and not pulling to one side or the other then I did not need a alignment. Actually with the older set of tires I did experience the van pulling to one side due to e defect in one of the tires, but ever since the new Michelin were installed, it has been driving perfectly straight on the freeway. So my question is - is the dealership right - in that I do not necessarily need a wheel alignment after new tires, unless it doesn't drive straight or pulls to one side?