For a fuel system, I would recommend the rubber lined SS over-braid. The pressure just isn't there to warrant #1, dicking with teflon lined hose when making them up, and #2 dealing with having to worry about kinking them during assembly/dissasembly, because we all know how often fuel line routing usually comes on and off during various engine work...
Secondly, no matter what the inner material used, if it's SS outer-braid, COVER it, or it will eat the sh*t out of everything it comes in contact with.... including YOU.
I use Protec sheaths, they work well.
And while it seems to work fine, Aeroquip doesn't recommend their socketless for anything running low pressure, say, less than 100 or so psi. Apparently without the pressure the hose isn't being bound into the barbs as well. However, if you've ever tried to remove hose from a socketless fitting without cutting the hose..... you understand why those having made up the hose aren't
tooo worried about it....
:hehe: