biodiesel

I may be non observant but I was at the Murphy Gas station I always buy diesel at in Gainesville, Fl and saw a new sticker above the low sulfur sticker that said it now contains 5-20 percent biodiesel. I would swear it’s never been there before. I have a 2008 DK55 and 2021 CK3510. Are they...

Got into a discussion with someone about growing things like Canola or Sunflowers and hot pressing to produce veggie oil, then converting that to biodiesel. wondering about the practicalities of that for the hobby farmer, since I do not see a wind-powered tractor in my immediate future. . .