TW black endura shine FTW. I have 1 open, 2 new kits and 1 trim coating that does about the same thing.

Before the Guz turned me on to this I used another Turtle Wax product that was cheap,at wal-mart, didn't sling and stood up really well since it's has wax in it.
-----Turtle Wax T-603 Platinum High Gloss Tire Shine with Wax.-----
I saw it at walmart for 4.50 this weekend. I put it on a rag then on the tire.