Carpet out. Lots of Fairy Liquid, lots of scrubbing and lots of rinsing.

Maybe worth looking for 2nd hand or new boot carpet on ebay.

 

Good luck I recently spilt a how tin of red paint in the rear footwell I used apc and a lot of patience and scrubbing

 

I'd go with another carpet myself.

Going on the fact years ago my mum accidentally left a pot of cream in the boot of my Calibra, it got broken while rolling around and spilt the lot on the carpet etc....even after soaking the carpet in detergent and power washing it still had grease stains on it..and that was just cream!!

 

Wash, rinse, Wash, rinse, Wash, rinse, Wash, rinse, Wash, rinse, Wash, rinse.

Just done the same in my XJ6 - it was old oil though. Carpets hanging on my line at moment.

Snow foam, washing up liquid, normal carpet cleaner.

BTW. Remove the from the boot.