I got a grease spot on my brand-new birthday present blouse from my grandmother. It didn't come out when I ran it through the washing machine. Fortunately I knew what to do.
Back at Thanksgiving time, the turkey I bought turned out to be the fattiest, greasiest turkey I had ever seen. There was a layer of blubber under the skin, and the drippings were more oil than juice. After dinner, my tablecloth was a disaster of grease stains. I put it through the wash twice with no improvement. Then I got out my Yankee Home Hints book. It said to use distilled water to wash out stubborn grease stains. So I poured a gallon of distilled water in a bucket, added dish soap, and dropped in the table cloth. I squished the table cloth around a little, then dumped the bucket in the washing machine and ran a cycle. The table cloth came out perfectly clean!
Fast forward to the present. I used the same trick on my blouse, and now it is just like new. I found that it is better to mix the dish soap with the distilled water and then add the item to be washed rather than putting the dish soap on the grease stain and then putting the item in the distilled water.