For the last week my S has felt loose. This was very noticable under acceleration when it would pull right, then pull left if I backed off on the gass. Pulling hard through the gears had me darting back and forth like a hound dog chasing a rabbit. In a strait line it was fine. I had all kinds of expensive thoughts (broken motor mount, cracked rear suspension bushing, alien invasion of the differential). Before heading off to the Honda dealer, I decided to check the tires even though they looked perfect. The right rear was 10 pounds down. Problems solved. Learn from my ignorance.

 

Keep an eye on it.
Maybe it has a small puncture?