[HWYSTR455]

I've used aluminum fuel line since the 80s, never had a failure. I've used aluminum fuel line with compression fittings, sleeve & tube nuts, on both carb and EFI, never a failure, long-term too.

As pointed out, when done properly, it is totally acceptable.

Newer fuel lines are not pure aluminum, it's an alloy, and is compatible with today's fuel additives. So it's important to use aluminum line that is rated for fuel. Think about some of the early aluminum carbs, what's the biggest issue with them? Porosity. Now there are alloys that don't have that problem. And the alloys last much longer.

Same problem with some rubber and even AN lines, additives eat them up, until they 'fixed' that issue. Took time for all the old stock to get rotated out, but it's good now.

Steel fuel lines back in the day were used due to the poor quality of roads, and off-road situations. Remember all the motor trend tests where they are on dirt and gravel roads, jumping cars? Not much of a problem these days. But if youre worried about impact damage, you can use stone guard in critic areas.

Shoot, these days OEs even use plastic fuel lines and fittings, and some are under 50-60 psi plus.

Totally acceptable to use aluminum fuel lines.

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