[JFP in PA]

Originally Posted by eightsandaces

Don't think it's a wives tale at all, fact is it's why Michelin claims to use the sport rib design. I do think foam is a waste of time, getting the car on stands for winter was even recommended in my 944 service bulletins, that's what I do every year.

In over thirty five years of storing multiple Porsche’s, fitted with everything from Bridgestone’s, Pirellis to Goodyear’s and Michelins; none of them ever had a problem sitting on the concrete floor of the shop for the winter. No foam, no levitation devices, nothing. And no prolonged flat spotting issues either. If your tire manufacture is telling you to park the car on foam to protect the tires, I’d suggest you need new tires from another manufacturer………………