Good post Archie. I didn't know this either.

Since I see so many incorrect postings of emails relating to safe and unsafe things, I decided to check it out on www.Snopes.com. Many may not know that all possible Urban Legends should be checked out here before passing them along in emails or posts. If it's going around, true or false, it'll probably be listed on Snopes.com.

So I checked, and it was there and listed as true. There are some other interesting things listed and worth reading. Here's the link:

http://www.snopes.com/autos/techno/wetroad.asp