Can anyone help me? I'm using pure soybean bio diesel produced in Iowa, and my Duramax loves it. when I can't get it and use regular diesel, then back to bio diesel, my fuel filter gets cloged, and I'm down to 25mph downhill w/ tail wind. The fuel filter is a bear to change. The diesel boats I've had in the past had a simple sediment trap in line and was very easy to clean. Is thier anything avalable for my 01 GMC Duramax??