Fuel lines

[cougarcat22]

I know a few people have had there fuel lines changed to the more alcohol resistant ones . I have gray lines with blue writing a few people told me these are the ones I need. I know some people had lines with yellow writing that changed to the fuel lines with blue writing . Is there anyway to tell for sure? It's going to dealer next week to have yearly service. If they are not right ones I'm gonna have them changed.

[cougarcat22]

I found the answer on the Merc Forum I got the newer ones

[gorzilla]

the lines with RED printing r the bad ones ,figured it out the hard way on the water.got em changed out and runs like new.