In article XnsA71C551315151dougmilmaccom@
213.239.209.88,
says...

"J. Clarke" wrote in
:

It doesn't matter what the brake lines are made
of, a 16 year old vehicle should have them
inspected and replaced as necessary.

You're expecting magic materials to take the
place of proper maintenance.

Nonsense. Metal brake lines are not a "maintenance" item, even on a 16-yo vehicle.

They are or should be an inspection item.

In more than forty years of doing the vast majority of my own maintenance and repair, I've
had to replace a corroded brake line exactly once: last March, on the Dodge truck which
my wife and I bought new shortly after we got married -- in 1985.

That you did your own maintenance and repair
does not mean that you did it right. Did you
perform every maintenance item that the service
manual specified?