Mark and others, I add SPF 15 + to the leather treatments and increase the protection. Has a little sun tan smell for a few days, but it works. If you use a damp to wet cloth to apply, you might also see some discoloration go away. Mine did. John Hervey http://www.specialtauto.com/ << For vinyl and plastic interior surfaces, I prefer Vinylex from the makers of Lexol leather treatment. http://www.lexol.com/vinindex.html It has a UV inhibitor in it and seems to do a good job of protecting the surfaces I've used it on. I've seen it for sale at various auto supply and hardware stores. >>