This is true, on my 88 is, after following a 4 step process including claybar, etc. I was able to get my paint so well protected, that when the car was rained on, the rain was in such small beads, that the car looked like it had a fine laver of metallic hair on it.
Really neat to see, esp. since when you took the garden hose to it, it all collected together, and sheeted away.