Smell diesel??

[DragonDiesel]

Every one in a blue moon, a Ford Blue oval moon... I get a lil wiff of diesel fuel while driving the truck. I saw a write up bout the drain o rings possibly leaking due to the new diesel fuel.
Anywhere else that may develop any sorts of leaks on these trucks? 02 7.3 here. I looked in the engine compartment and it didnt look like anything was moist. So I dunno.
Any ideas folks??
-The Dragon

[Stroked]

i had that last night, most of the night i would smell diesel fuel when i steped out, or even just put out the window, never before, and hasnt happened since