Sprinkle with baking soda to absorb excess grease. If that doesn't remove all of it, try a laundry safe degreaser like GP66.
Hello I often use Dawn Dish detergent for fabric stains and my other favorite fabric stain remover is soilove which I found on Amazon.
Spray with WD40 and blot from outside of stain to center so not to spread it. Dawn dish liquid will also work. Squirt a little on the stain, work it in with a cloth, blot, and rinse.