Comment is from mareakin's post. Older tires on my car make the highway feel "bumpy". Can a bad allignment cause the car to ride like that? I had decreased tp which didn't noticably improve the ride, so I'm going to try mareakin's theory today. This morning I observed the LF tire has what looks like "crazing" on the outside shoulder. Fine squigly cracks about the thickness of spider webs. The other 3 tires don't have it. Do you think increasing tp will improve the ride?