Posted for "Mario Gonzalez" <avidmario@hotmail.com>:

Bill, I agree with Don, I've used tygon for fuel lines and sight gages in my
Avid they are good for about two years and then yes they became yellowish
and hard, I replaced them with motorcycle fuel lines now 3 years they're
like new still, I'll use motorcycle fuel lines in my LNC2.
Mario