Well, due to a blowout caused by some spirited driving at Deal's Gap this weekend, (motorcyclist got very irritated I could keep up with him...) I now have an inflated spare. Is there anything I can put on it now to keep dry rot at bay and otherwise protect the spare when not in use and collapsed. I'm not sure how old it is, assuming 12ish, and although it did great for the hour and a half I had to have it on the car, I want to make sure it'll still be OK in the future, without having to fork out the $900 or so the dealer wants for a new spare. Any suggestions?