Twitchy--I mixed 20% WVO with diesel. I was pretty careful about letting the WVO settle and solidify at our temps before cold filtering. Our temps have been between 50 and 80*F (too HOT!)

Lars--I don't know what would dissolve the old crud in the IP. Hopefully somebody else can weigh in with advice. I'd think this problem could affect anyone, not just veggie users. From what I recall, the new diesel will have the same properties of "stirring up the gunk" so this could be a very widespread problem when the new diesel comes to our shores. Good luck!

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1983 300td 240k (down with bad tranny)
1984 300d 222k (daily driver) "Olive"
1997 GMC K2500 105k (sled dog limo)

"The scenery in ANWR is as spectacular as the Grand Canyon and the wildlife is more impressive."