A friend told me about a product that works wonders on renewing the rich luster to painted and plastic parts. I have used it on all of my older bikes and found it to be fantastic at bringing old faded plastic back to life. It is S100 Engine Bright. It is a small can that sells for $7.95. It seems like a lot of money when you buy it, but after you see how well it works, you'll use it without question. Older bikes with dull gray switches and turn signals will look like new after simply spraying the parts until very wet and then after 5-10 minutes wipe off the excess that didn't get absorbed. Bikes I did 6 months ago still look good, without retreating.