What is the fuel rail made out of?
#1
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What kind of metal is it, anyone know? It looks like it's zinc plated maybe, what's under the plating?
#3
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Well, if yours rusted we can rule out stainless, and it's too heavy to be aluminum, so probably steel then I guess. Anyone know for sure?
#4
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rust=iron or steel. Since iron cant handle tension, (would be opposite of ideal for a pressure pipe) by deduction it is steel. You could tell pretty easily with a magnet, if it is attracted the rail is steel.