The problem is that WVO is not so readily available anymore as it's a commodity now and many corporations are involved in it. So, the small guys like us who just want it for personal use are being shut-out.
WMO is very available but is far less desirable in many ways to WVO.
I think soon enough WVO will be almost impossible to get, stricter emissions will also probably soon be enforced to try and eliminate all older vehicles too.
It sucks, best fuel in the world (best because it's a waste product and more green-friendly) and the common man can't get no WVO...
There must be a simple way to process WMO (that is 100% pure WMO, no contaminates) so that it will mix easily with diesel, etc and get rid of any bad side-effects...we just haven't found it yet...