Benzhacker, I live in 20148. The nearest available Biodiesel is in Leesburg VA, I found it on one of the state websites. As for the hoses all the fuel hose/lines under the hood have been replaced with Viton. I have the pieces for the tank lines in the back as well as the tank screen gasket and the fuel filler neck rubber piece. Good to know it is not my imagination about the engine sounding different. Thanks to all for the feedback. Very helpful .

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