A couple of weeks ago my CRD started missing when I would come off the throttle around 70 mph. When I pulled off the interstate it went into limp mode(wouldn't come out of 2nd gear or go uphill). I checked my Aux. filter, it was full of green particles 2-5 mm across that looked like corn flakes. I changed the goldenrod filter and added biocide but it still would not come out of limp mode (oh oh) after stopping and restarting the engine it ran like a champ. The biocide kind of dissolved the green breakfast cereal in my filter. I bought the fuel from a station by my house which goes through a lot of diesel in a week.
The moral of this story: watch out for green fuel and carry biocide in the summer.

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Manure green 2005 CRD sport4x4, GDE Hot tune, Cat Gut, OE skids, Draw tight hitch, Duramax lift pump, 160K on multiple varieties of fuel, XM radio, Escort live with Redline, fog light mod, GPS, Icom IC7000 all band radio call sign KC9QPF, Grabber AT2s on Soft 8s, FIA grill blanket.