Tks for the reply.
I am learning that about diesel.
Seems every time I fill my tank back up some connector or fitting starts to leak.
The shut off valve on the bottom of the fuel tank being the most frequent. Sometimes I just have to give it a wiggle or turn it all the way in, and back out and it stops. I suppose it getting down into the upper 20's at nite and into low 50's during the day doesn't help either?
Tks for the tip. I will check it again in the AM before I get going.