I saw the link on Page 2, which downloaded a PDF to my computer. I'm a member over at the same forum (DieselPlace) and the test results are posted on there in a thread too.
In short, the results of all that was tested or listed in the test results (if you're not a member there and don't want to register...) showed that 2% Biodiesel was the one that lubricated the most. Personally, I'd like to just fuel up with B5 (5% Biodiesel) but if I can't get that then I'll have to go get 100% and mix it in with ULSD.
Note: Some Diesel engines can't take 100% Biodiesel without some modifications to the engine so don't just fuel up with 100% if your engine can't handle it. I realize there are people here who know that, I'm just posting it for anyone who doesn't.
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