removing fuel stains

Joe, this is a difficult thing to repair. I have never successfully found ANY product that would remove the stains you describe. Basically, once I removed as much of the area using other methods such as soaking, washing etc. I had to wet sand the area and polish back using Mother's aluminum polish or something like Novus plastic polish. Brasso also works well. Even then, while my attempted repairs looked pretty substantial to what it was prior, I could never seem to fully withdraw the discolored area. This also looks somewhat funny due to this one area now being extremely shiny which had me wet sanding and buffing in surrounding areas to somewhat detract everyone's eyes from that one spot. The real test of patience is when the affected areas have panel lines or raised surfaces where details are molded in. One thing I would suggest however if this is a somewhat cherished piece is to do any tests on a inconspicuous area first prior to going at it.

Another process that comes to mind and I have no experience with trying or doing this is a brake fluid wash. I've read of others successfully doing this to remove paint. I don't know how this would react to the staining. From simple Google searches, it claims that standard DOT3 doesn't attack plastics. This could also be a good go to first method to try prior to any sanding or polishing if it comes to that. Maybe someone else here has done such a task. Ken