I bought a 2010 Jetta Sportwagen for my 40 mile commute. It’s a TDI with a 6-speed manual and 69,000 miles. I didn’t notice this until after I bought it. The spot is kinda gooey like adhesive goo. It doesn’t really wash off. I’m 6’ tall and my knee leans over against the center console. Now I have black marks on the outside right knee of all my Dockers. Spray-N-Wash doesn’t even get it out. Anybody else had this issue and what did you do about it?