Any diesel can use bio-diesel, doesn't have to be a VW.
Why spend the time/effort trying to make good (you don't always make good batches) bio, when you can use straight WVO.
Bio-diesel is processed VO.
running straight WVO or VO in an engine is not the same as bio-diesel.
A diesel engine can run off B100 with no mods.
To run off WVO, the oil must be heated, and a second tank is required for startup/shutdown.
yeah, supposedly, you start the truck on diesel, let it run about 15 min and then switch to oil...and the reverse when you shut 'er down...or so i am told.
