Quote:
Originally Posted by dowlingm
B30 bio only works at certain times of year - in winter you'll be down to B5 or else have a congealed mess in your tank - the gelling point is variable depending on what you made the biodiesel from. B20 seems to be the sweetspot for most users.
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Depends on the type of feedstock used to make the biodiesel, the minimum operating temperature, and any other mitigating measures such as the addition of antigel additives, installing a fuel tank/line heaters and insulation etc.
Soy bean BD tends to gel a good bit above freezing point and palm oil starts to gel at 15C if I'm not mistaken.
Rapeseed Methyl Ester biodiesel on the other hand doesn't start to crystallise until it reaches freezing point, and it rarely goes below that here except a few nights of the year.