I bought an 06 EX-L about 18 months ago. Van drove smooth on test drive but after getting it home I noticed that occasionally I would get a side to side shimmy in the steering wheel at speeds over 62 mph. It only seemed to be on certain stretches of road, but my other vehicles had no problems with the same stretches of road. So I had Costco tire shop rotate and balance all 4 tires. Still had the same problem, no change. I searched this forum and read about all the different possible causes and solutions. About a month ago I went to a different local tire shop to have the road force balancing done. They put my wheels on to a laser? balancer instead of the road force balancer and told me that all 4 tires had high spots on them, and indicated it was probably flat spots from sitting on the dealer's lot for a long time. They indicated that they could road force balance them but it may not due any good. They put my wheels back on without balancing. So I assumed that I had to get a new set of tires based on this information. I still had decent tread depth so I was hesitant to replace right now. Frustrated with the shimmy, I decided to rotate my tires myself and in doing so, noticed that when I broke loose the lugnuts, some were extremely tight and others were not all that tight. I used a torque wrench set to 92 ft/lbs. when tightening the lugnuts and no longer have the shimmy in the steering wheel. I am thrilled and frustrated! I am thrilled that the annoying steering wheel shimmy is finally gone after living with it for 18 months but frustrated that I didn't go back to basics when I bought the van and rotated the tires myself and confirmed the proper torque spec on the lugnuts. Apparently the wheels were not properly torqued when I bought the van, Costco tire shop apparently didn't torque them properly, and the local tire shop didn't torque them properly which I did witness, they just used the air gun. And because my van has alloys, the torque spec is kind of important. So, if you have battled with a steering wheel shimmy, ensure that your lugnuts are properly torqued and see if that helps your situation. I have "lurked" on this site since getting my van and read a lot but never posted. Hope this helps someone else.