Does biofuel made from algae work in cold weather?
NO IT DOESNT WORKS The biofuel made from algae clouds up (starts to freeze) at higher temperatures when compared to regular diesel, and therefore it’s important to use a lower blend of biodiesel in the winter. B100 can be used down to about 40 degrees F, B50 between 20-40 degrees F, and B20 below that. Remember that the cold-flow properties (as they’re called) vary depending on what the biodiesel is made from (feedstocks with more saturated fat, like coconut oil or animal fat tend to freeze earlier). Local producers should be able to give you more information about this, though most biodiesel you will find is going to be good ol’ soy biodiesel. I typically use B100 between March and November, then switch to B50 for the winter, unless I plan on hitting much colder temperatures (I mean anything approaching 0 F).
