my guess is a clogged fuel screen. I've been running B100 off and on for two years now, and noticed for quite a while that whenever I filled up, there was pressure in the fuel tank. (Open the cap, and you could feel the slight pressure)

Anyway, have been pretty religious about changing the fuel filters, both primary and secondary, but the last month or so, seems that the first filter has been not lasting very long at all. I might have gotten a bad load of #2, but I'm not sure. For the more part, this year has been more #2 than Bio-D. Anyway, lots of particles like black sand.

Long story a lot shorter....550 mile round trip and lots of gunk. I now have my inde cleaning the screen and remaining fuel in the tank. I will, of course, replace both fuel filters, but was wondering if there was anything else I should think about doing.

Comments, suggestions??

__________________
87 300SDL - 215K Miles !!
99 F-350CC Dually PSD - 190K
86 300SDL - 189K
All on B-100