My pickup truck is nearing 30yrs of age. Hoses original as far as I can tell. Hoses still look good and pass the squeeze test.
Very few trucks have ever been sunk by a failed hose.
Peggie
http://www.amazon.com/New-Get-Rid-Bo...dp/1892399784/
"If you can't explain it to a six year old, you don't completely understand it yourself." --Albert Einstein