I filled up with biodiesel for the first time yesterday. So far the only noticeable difference is the "hot vegetable oil" smell from the exhaust.
The Biodiesel Association website www.biodiesel.org.au warns that "in general, biodiesel will soften and degrade certain types of elastomers and natural rubber compounds over time" and advises users to replace rubber components in the fuel system with compatible types.
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Is anyone here running an older Pug on biodiesel? Have there been any problems with the fuel system? I like the idea of running on a non-fossil fuel, but if it is going to cause problems I might go back to the stinky stuff.