In article 1105070616.b4d5883161fcdcc4115038ebc8747e3d@teran ews, Jim Stewart
says...

wrote:
I'm sure I read somewhere that one should not use copper for fuel
lines for gasoline that something happens between the copper and the
gas.
Am I dreaming all this up or what?

Copper tends to work-harden and become
brittle where there's high vibration.

Ie, near engines. My take on this is there
are plenty of other materials to use instead
of copper, for fuel or oil lines. Sure they
look purty all shined up, but that won't get
you home when the motor pumps all its oil
out on the ground, or a fuel leak hits a hot
manifold and lights off.

Jim


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