cleaning the interior

[Matryx]

A couple of days ago I pulled my rear seats and trunk carpet. This is what I found. It looks like some type of grease and is very thick. I was wondering what would be the best way to clean this up? Any cleaners I should use so not to damage the paint anymore?



http://img252.imageshack.us/img252/4597/dsc07781fe6.th.jpg (http://img252.imageshack.us/my.php?image=dsc07781fe6.jpg)



http://img187.imageshack.us/img187/4899/dsc07782sq9.th.jpg (http://img187.imageshack.us/my.php?image=dsc07782sq9.jpg)