Interesting!

Sounds like I may have caused this by purging too long, even though it happened before my "long purge"

In this case, I drove to work on WVO, purging a mile away; I left the switch on "purge" when I got to work; jumped back in in the afternoon and forgot to switch back to "diesel" (I wanted to save my grease).

Drove 15 miles home on "purge"!

Whoops!

Sounds like I'll run the tank out and swap the diesel filter. Actually, I'd hate to drive four hundred miles this way. Maybe I'll just buy a couple of filters, and change now to start; again when it starts to fade.

Forrest