You found the ticket but I have had amazing luck with Ivory dish soap. I have used it to get a lot of blood out more than once, grease, red dirt, more grease, that black soot from tires. I use it instead of any of the so-called stain removers. If I have a small stain I use rub it in then throw it in the wash. My friend told me when I had a mountain biking wound that re-opened on my work pants, best advice ever. It is amazing and even works on stains that have dried.