posted 12 years ago
Using a B20 mix can cause a filter issue (clogging), due to the veggie oil cleaning the fuel system, all depends on how dirty the fuel system is, This is the most common problem when someone starts using large percentages of biodiesel (if you are only using B20 or less then you may never have the problem). how hard is it to change the fuel filter/expense? vs worth using the oil for transportation, remember during winter and you could end up gelling up the tank, lines and filter if not prepared for it, a test could be done making a small amount of B20 in a glass jar and see what happens, any separation or gelling and at what temp.. there has been an issue with the newer engines due to viscosity issues of Veggie oil, recently heard that some are running B70 in summer and B50 in winter using acetone, kerosene or unleaded to thin the VO, but now you start getting into cost issues, time, etc......
To be safe i would wait till summer no reason to have a fuel issue during the winter
regards Stark