This was just posted, with before and after pics, on Ski Diva. Totally took the stain away, and it was a big one! I've not used this procedure before, only Dawn and a toothbrush.
1. Spray each stain with WD-40, and let set for at least a half hour or more. (I did 45 minutes)
2. Put a small amount of Dawn dish soap on each stain, and scrub it into the stain with a toothbrush.
3. As it starts to release with off (blot off) with paper towels.
4. Continue until it the stains are not visible.
5. If the stains are still visible, do steps 1 - 4 again. (I had to repeat those steps once.)
6. Wash off the affected areas with cold water in the sink.
7. Wash the item according to it's instructions
8. If after washing the stain(s) is still visible: DO NOT PUT IN THE DRYER
9. If stains are still visible, start the process again.