I have the same problem. Originally I thought it was because the first spill was clear juice, but then I got in the car from the rain and the stains began to form. I used a solution that I used on my carpet in which you only use the foam and it caused a small spot to turn into a large stain. They called the fabric premium when I bought mine and that gave me the impression it had a type stain repelent on it. Now I'm looking for seat covers because looks like I have abused the interior. | 
