I always take vague claims on posts with a grain of salt, especially when no research links are provided.
A couple of observations:
He gets better mileage but does not say how much. "Much less" soot is mentioned but provides no reference.
I haven't found any studies that claim it is easier on the motor, and there are ZERO proof that on the average diesel autos last 450K miles, let alone 650.
It is mentioned that bio costs 15% less but very few entrepreneurs embrace it for "little money in bio" (?)
Fresh popcorn aroma comment and 450K mile seems to be a stretch...what else is?
I could make a long, glowing paragraph about hybrids and mix speculative half-truths about it without references.
Perhaps Bio is "the wave of the future" and perhaps not. Verifyable facts go alot further.