So ive been driving around in my stock xj for a while and notice i get horrible mileage.. so I poped the hood, and saw gas leaking from the return fuel line! it stops leaking when i turned it, and press against the fuel rail. Should i clamp it??? or buy a whole new line?? I took it in already to replace the quick connect piece at a local 4x4 shop.

 

ive been told a return doesnt do a whole lot as long as your main fuel line aint leaking. I actually got a sticker with a rusty return line i think your problem is more then a return line