Biodiesel vs WVO

There was a question about the difference between biodiesel and WVO and 
some of the properties...

What's the difference between bioD and WVO?  Search for WVO and 
University of Idaho - they have been researching biofuels since 1979 and 
they have given up SVO, let alone WVO.  It causes too much damage to 
engines.

Biodiesel has the glycerides removed from the WVO and burns like, but 
cleaner than, dinodiesel.  I have seen emissions test on Biodiesel, but 
not on WVO.

Biodiesel has a reasonably predictable gel point.  WVO varies widely 
with the mix of oils.

Biodiesel requires no modifications to the engine or fuel system to 
run.  Diesel engines will start and run fine (basically forever) on 100% 
biodiesel or any blend with dino.  WVO systems for cars require separate 
tanks, heaters and switching to allow the car to be started on diesel or 
Biodiesel and then run on WVO when it gets up to ~180°F. The installed 
cost can run $2500.

If you don't feel the urge to go completely off-grid, running B50 in the 
winter (below about 30°) still reduces dino diesel consumption dramatically.

The bottom line is - if your rig is worth more than about $100, 
biodiesel is the right choice.  You need to consider the resources 
required to replace an entire automobile or truck if you are willing to 
junk one to save a couple $$ on the wrong fuel.

Just my opinion,

Felix