A friend of mine lives near Shepparton in Victoria who makes his own biodiesel. Because it is cold he now adds one third fossil fuel to biodiesel in his fuel tank. Where he lives the price of fossil is now $1.75 per litre and he is concerned that that price will skyrocket and would like to know if any one has added a heater to their vehicle to run on biodiesel the whole time.

If you do can you briefly describe what you have done please.
Silverfox