you need a hazmat suit to jump in the pool

If your radiator rots out, your going to mix trans fluid and antifreeze. So does that mean there's no where to dispose of it? It all goes thru the process the same way together. Oil is oil.

I do this after filtering it to 3 micron and run 75/25 oil/diesel. It smokes no more than pump diesel and motor oil is more energy dense so a power gain, although minimal, is another benefit. 327,000 miles and counting. Just do it right.