[oil pan 4]

The B20 runs cleaner because there is virtulally no smoke during operation.
Remember I run no emmissions system what so ever, so what comes out the tail pipe is uncencored engine exhaust.
I would assume if I went from B20 to B100 there would be even less smoke.
B20 is the highest bio diesel concentration I have found and filled up with.

Bio diesel in NewMexico during winter will have the consistancy of pudding during a cold spell and will jell and cause filtering problems the rest of the time.

I took the time and ripped all the old rubber lines out of my suburban and replaced everything with biodiesel compatable stuff and installed larger primary fuel filters and installed stronger fuel pumps for running WVO.
Other wise I would be trying to avoid biodiesel. It tends to turn non biodiesel compatable rubber to black mush and cleans out gunk in the fuel tank just to redeposit it in the primary fuel filter.
I can run B100 or a 50% WVO/diesel mix today, None of the new diesels can do that.