+1 on nostr:npub1fsml34f9673wg5qvq8gyvhprv83f87q23kldz3wc3wnpnk5nx37qnk20dq . biodiesel "recipes" are widely available. But as per the name, require compression ignition. HUEI fuel injection and high pressure common rail systems do NOT run well on anything besides clean diesel fuel. Also do not even consider running in a modern emissions system equipped diesel engine, it will shut down faster than you can add it to the tank.

Even on late 80s-90s systems with injection pumps are often not the most tolerant, and depending on the pump/injector combo will need regular maintenance. That means pump and injector teardown and cleaning. I know a few people that just have spares and swap them out and clean as needed.

I would also highly suggest nearly perfect filtration, and added pre-lift pump filtration, along with a 10micron or smaller pre-injection pump filter.