I have never owned whitewall tires before. What do people use to keep the white looking white? I seem to remember using Comet on my Dad's tires when I was a kid, but that was a LONG time ago. I have used Barkeepers Friend on my sailboats to brighten things up, but there was little or no rubber on a sailboat. I especially like cheap and easy tricks of the trade. Looking forward to hearing what others use.