Hi all , i have a fuel leak on my fuel pressure regulator where the 1/8 npt threads in to the regulator whats the best way to stop it leaking.

Fuel resistant locktite or PTFE tape?

PTFE tape.

Make sure that there´s no tape beyond the tip of the tube as small pieces dislodged from the joit may cause problems downstream later on.

Thanks for the replys guy's