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Old 10-08-2013, 06:03 PM   #200 (permalink)
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I can think of numerous vehicles that use an Al. extrusion for the injector rail. Fatigue cracking is apparently not an issue there. It would be for the fuel lines.

While it is possible to buy Al. fuel line aftermarket, I don't know of any OEM use of it. Fatigue may be why.
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