Is that a more modern type of innjector? Yes I heard older diesels are much more tolerant of veggie/oil and biodiesel in general.
Yes, all the modern diesels have them. They work under extremely high pressures. The ‘biodiesel’ grease is too thick to pass through the injectors and will destroy them.
The glycerin has to be removed from the used oils first, and filtered down to the micron for cleanliness.
The old mechanical injectors are more ‘tolerant’ but even they will clog from time to time. That’s why there are multiple filters...................