Is it safe to use fuel line as heater hose?

[Anton CH.]

I can't find a heater hose in 3/8" ID anywhere. Its same construction right?

[Blitzkrieg Bob]

I can't find a heater hose in 3/8" ID anywhere. Its same construction right?

contstructed.

Materials and design are made to handle fuel and resist softening from oil and heat.

[Anton CH.]

Hmm OK, well the material they use for heater lines is usually made to withstand high temperatures for long time. Not sure how hot the fuel gets. I noticed that heater lines are in general also beefier than fuel lines.

[Vanguard]

Why not just use fuel line for fuel and heater hose for the heater? It's not like we're talking about a huge savings.

[Anton CH.]

Why not just use fuel line for fuel and heater hose for the heater? It's not like we're talking about a huge savings.

Find me a store that stocks heater hose in 3/8" ID.

[Vanguard]

http://www.autohausaz.com/search/pro...@Heater%20Hose

Which one of those were you looking for? Or is it something else?

[takumidrift30]

Logically I don't think so and again No based from the experience of a friend of mine from the Benz World. He did the samething ended up more problems.

[632 Regal]

I dont think you will have a problem using fuel line in there. I think fuel injection line might be a bit beefier since it can handle a LOT of pressure. The chemicals in the antifreeze and temperature should not be a problem.

[ryan roopnarine]

a big box hardware store like lowes or home depot should have 3/8 heater hose. just look for the one with "heater hose" on the hose itself, no need to worry about accidentally picking up garden hose or dishwasher return hose.

[Dave M]

I have a piece of fuel hose 'pinch hitting' for a coolant line that come right off my M50 head. Its been in there 4 years now. I've dis-assembled my engine twice and felt no need to replace this bit, its doing the trick just fine and I wouldn't hesitate to use it again.

Dave