Does plastic hard fuel line degrade?

[landruster]

As per the question, i have a 1992 landrover on its original hard plastic fuel lines. I assume these eventually go bad?

Worth changing due to age?

[time]

I changed all the hard plastic fuel lines on my ML270 as the heat in the engine bay made it go brittle and porous.
After I fitted the new fuel pipes it would fire up instantly hot or cold which was a massive improvement

[sowen]

I'd say there's more chance the original plastic fuel line will outlast new modern rubber replacements. Haven't heard of them being a cause for concern on Land Rover's

[welshpug]

there's 2 plastic lines on my 205, black Nylon afaik, like truck air lines, though coated with rubber, I've never heard of anyone needing to replace them, only the normal rubber ones from tank to steel hardline.