Drawbacks of waste vegetable oil vs. biodiesel

Q. I have been researching bio fuels to use in my 7.3 liter diesel 1999 Ford F250. I have seen articles on biodiesel and waste vegetable oil (WVO). According to what I’ve seen, WVO is filtered and stored in a separate tank in the vehicle. The WVO is heated and supply to the engine via bypass fuel lines. The diesel engine is started petro based diesel and then switched over to WVO.

It would appear to me that biodiesel is better, but WVO is much easier if you have space for an extra tank.

What are your thoughts on biodiesel vs WVO?

A. Here are a couple quick thoughts about wvo vs homebrewed biodiesel:

Biodiesel “drawbacks”
Methanol is required to make biodiesel,
Homebrewing biodiesel processor requires a fair amount of space
Homebrewing requires ~3 days lead time from veg. oil to biodiesel

WVO “drawbacks”
Glycerine is not removed, may leave deposits
Requires finer filtering of the oil
Systems are in experimental stages
Requires a space for second tank
DIY conversions requires some mechanical skills

Both require collecting oil, which is messy and not always as easy/convenient as people think. Best to find a source before you start anything.

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