1964 vinyl restoration/preservation
I have an all original 64 roadster, FI, KO wheels and 46K miles. It has the original black vinyl interior in amazingly good condition. However, the vinyl is getting a bit "stiff". Not brittle, but stiff. I have been treating it with vinyl-x and with Lemon pledge as some have advised. Maybe it has made a slight difference but nothing impressive. Any ideas on what to treat old vinyl with??