That is not a new study.
If you want a BIG study then study Europe where they have hundreds of millions of miles driven with BD. It's only an issue with a few people in the U.S. because it is new to us and because very few of us drive diesel cars.
Koolaid?

It's an ironic comparison because dino diesel is highly toxic while BD is not.
Also consider this: In Jonestown the crowd all did the same thing....except for a few who took a chance and escaped. Dino diesel is the Koolaid: Everyone is drinking it even as it kills us. If you want to leave the crowd and escape the compound then you'll have to take a calculated risk and do something different.
The biggest problem BD faced in it's early days was lack of standards and enforcement of standards. That has quickly changed as it became more popular and is no longer much of an issue if: 1) you buy from a reputable company or 2) you brew your own and test it.
There are more than a few comments I've read from people who have had regular diesel ruin their injector pumps due to poor quality dino-diesel fuel or inadequate filters. It's all about standards and quality and if you are pumping any fuel from a huge station with giant tanks in the ground the quality can vary more than you might think. You can even buy field test kits now that examine diesel fuel quality at the pump and it is no secret that many stations are pumping out of spec dino fuel due to contamination and other factors.
It's not the nature of BD, its the quality of the fuel - any fuel - that matters. BD does have better lubricity and higher cetane and tends to quiet your engine down a bit. I consider it a superior fuel - and have been using it in my F350 since 2002 and both our CRDs since we bought them. I'm also building reactor that will allow me to brew my own - which will allow me to have even better control and monitoring of the quality of the fuel going into my rigs while saving me 3 bucks a gallon.
Quote:
I've actually considered making biodiesel myself, but I'm a little concerned with the fact that I wouldn't be able to get all of the caustic out. A little bit of that stuff and potentially go a long way in damaging parts. If I was to actually make it, I'd think I'd actually like to distill it to ensure that it would be caustic free...would be very time consuming though
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I would encourage you to join some online forums with people who actually make the stuff and use it successfully such as this:
http://biodiesel.infopop.cc/6/ubb.x?a=cfrm&s=447609751 They will tell you over and over that the most important part of the process is testing, testing, testing. Something, by the way, you should probably do to your store bought diesel as well since it is not always up to snuff.