360 Can you keep your fuel and vapor lines from turning to goo?

Ive replaced all of the rubber in the engine bay over the last two years. All but one of the new evap lines I bought have the fabric on it and were replaced 2 years ago and are still in good shape. One of the evap lines didn't have the fabric and looked identical to the line I was replacing but without the goo. This line was replaced about a year ago and is already starting to turn to go. I have no idea what you can do to prevent this I'm just letting you know what I'm seeing.

 

Stop using gas with ethanol?

/

 

I've never put ethanol gas in my car in 4 years.

 

Just use race gas. No ethanol in that

 

This is interesting as most of those lines are nylon, which supposedly is fully ethanol/alcohol resistant. There are some small vacuum lines on my 430 which are rubber, but they aren't in direct contact with fuel vapour.

If there are some rubber hoses used for fuel vapour then I'd look to change to nylon.

 

But where do you get non-ethanol gas???

 

At the gas station?

 

Right, I need to look for them on the map and drive 200 miles round trip to get it.... Use the gas just to get the gas...wtf.

 

Someone correct me if I'm wrong but I thought in another thread that someone mentioned fuel lines were steel with a rubber wrapping around it

 

I actually bought a 20 gallon portable tank, I throw it in the bed of the truck, drive the 100 miles round trip for 91 octane and put it in the 360. I only go through about 2 tanks a year on the 360 so its not a huge deal. I have recently found there is a Sunoco about 150 miles away from me that has 93 ethanol free so I'm going to give that a go next.

 

The second picture is the main fuel line. That line is plastic within a rubber protection sleeve. You are seeing the rubber protection sleeve melting.

Changing your fuel will have zero effect on the outside of the line. You seem to have some seriously high engine bay temperatures. I would suggest looking for the reason why. And quickly. You could end up losing the car to a fire..