How does biodiesel work in cold weather?
Like any diesel fuel, biodiesel can gel at low temperatures, however, the gel point for 100% biodiesel is higher than petrol diesel. We therefore do not recommend the use of B100 below 40 degrees F. During the part of the year when temperatures drop below 40F, we recommend biodiesel concentrations of B50 or less. Concentrations of biodiesel at B20 or less behave almost identical to petroleum diesel in cold weather. Cold weather gadgets designed for traditionally fueled vehicles, such as engine block and fuel tank heaters, are helpful for cars running biodiesel in cold weather.
