What removes oil and black undercoating but not paint? Options

[mskala]

My car used to leak oil from lots of places. After rebuild, now everything's pretty
good. But, particularly from under the oil tank area, oil has got on a large area
under the floor and longs.

I found accidentally that the CRC Electronic Cleaner doesn't seem to remove paint,
but it is so weak that the black undercoat (wurth?) turns into a huge amount of black
goo that hasn't really come off the car.

I want to save any paint and the white-ish undercoat. Any products that will do this?
I assume my paint is the old lacquer type paint.


Thanks
Mark S.

[brant]

20 years ago
One of the oil removing citrus cleaners worked for me

I’d use starting fluid before brake cleaner. Brake cleaner can effect some paints. Hopefully not the old stuff on a 914