Greese stain

Greasy food stains usually respond to dish soap solutions or a spot remover. Treat the area and then use a carpet cleaner with a hand attachment to thoroughly clean and remove soap from the area. I've removed many this way. If it is engine grease, it may be harder. I would try the options I just listed or a liquid hand cleaner (like GoJo or similar) and rinse with the carpet cleaner.

try scrubbing it with Dawn dish soap and water, then rinsing well.

I was successful with removing grease stains by treating them like any fabric for pretreatment and then shampooing them with hot water. Try not to use more water than necessary or it will take a long time to dry. If you have access to an upholstery steam cleaner, they work great. Try not to scrub the stain without preventing it from spreading. I applied a light coating of pretreatment around the edge and sprinkled baking soda outside the edge. Grease has a nasty habit of spreading.

I used to put cornstarch on the stain to soak up the grease , then vacuum . After that , gently clean with Dawn and water .

Now I just don't let the children eat in the car anymore lol.

You can try WD40.

http://www.howtocleanstuff.net/how-to-remove-grease-from-a-car’s-interior/

I always have a small spray bottle of white vinegar and water in our car to clean the windows and any spots that show up on the seats from time to time. Vinegar is a great grease cutter, but you might have to use straight vinegar on that grease spot depending on how bad it is. Using a small brush work the vinegar into the spot, it might take a little work but it will come out!

thank you,

will try