I have been using "renewable diesel" for maybe 6 years, since I first learned of it at Propel stations, and now R99 at Union76. My engines run smoother and it is sometimes cheaper than fossil diesel. I think only available in CA due to "carbon market" credits. I had one or two rubber hoses at the lift pump seeping, so changed to Goodyear Barricade which has "For Bio-diesel" printed on it and I think has a Viton liner. I don't know if the fuel was the reason. I also changed the injector overflow tubing to 1/8" Viton and no more weeping like I got with the "correct" braided hose stamped "Made in Germany" (even before using renewable). B20 could be more aggressive than renewable, since the later is chemically converted to work the same as fossil diesel, re gelling and such. It smells a little like burnt cooking oil.

__________________
1984 & 1985 CA 300D's
1964 & 65 Mopar's - Valiant, Dart, Newport
1996 & 2002 Chrysler minivans