fuel filter and seal?

["K. Creason" <dmc4687@xxxx>]

I've had a rough day-- made a mess changing the oil in the D and the minivan
(to previous poster: they are comfortable, more power than my D, and can
haul 4'x8' sheets of plywood etc., so you will be ok). I should have stopped
there since it wasn't a good day, but I went ahead and started on the fuel
filter.
It's back in, but I will have to pull it out again because the inlet angle
adapter leaks. I thought I tightened it in enough, but no....
So my question is: mega-tighten it down some more? or is there a plumber's
tape (and particular type is fuel resistant?) I should be using on these
threads? There is very little to seal this connection.

-K