There is simply NO real excuse for fuel prices at their current level, BTW. That "paraffin" story sounds suspicious. Vegetable oils would be unlikely to have a paraffin base (wax), while many crudes do ... paraffin or ashphalt.
” That “paraffin” story sounds suspicious. Vegetable oils would be unlikely to have a paraffin base (wax), while many crudes do ... paraffin or ashphalt.”
Doggone it. Now I hafta go back and read up on this stuff.
The problem in veggie oil is glycerin or glycerol rather than paraffin. There’s also a tendency to thermal polymerization in some of the oils, linseed for example. And they’re using something called the Iodine Value to rate the oils, it has to do with being saturated or unsaturated. So there you have it. That’s all until you point out another error in my somewhat dubious Biodiesel 101 essay.