My main interest is finding a good tire protectant to prevent the sidewall from cracking. There are a ton of tire dressings out there, but I want protection from UV, ozone and whatever else causes a tire to deteriorate. I have used 303 going back 25 years. It has worked OK but price has gone way up and it doesn't seem to work as well as it used to. I tried Aero Cosmetics Rubber Care and it was cheaper and seemed to work about as well as 303. Just wondering if there is something better out there to protect tire sidewalls.