Quote Originally Posted by Gman View Post
I've even seen them go so far as to coat the inside of the stainless with aluminum. Exhaust rot really seems to be a problem of the past.
Speaking of things from the past - I was looking at some old highway pictures and it occurred to me that the old "oil stain in the middle of the highway" is pretty much a thing of the past. Back in the 60's and 70's it was just taken as a "given" that all cars would drip a little oil and so the middle of the lane in the freeway always had a nice black, oily stain. The older the highway, the worse the stain.

Here's an example of what I mean:

tmg-default_lq.jpg

Now that cars have pretty much stopped leaking you don't see that anymore.