Another how do I get this out of my clothes entry

[jesscyn]

I just (a week ago today) got this grey sweatshirt and managed to drop taco meat on it, causing a grease stain on it. As soon as I noticed it I went to rince it out but didn't use soap. I put it back on and there are still grease stains on it. I washed it out with soap, still there.

Does anyone have a product that they swear by?

I was thinking about getting some Oxy-Clean off of Freecycle but I'm open to ANY suggestions that someone may have.

HELP!!