According to Wiki:
Tetrachloroethylene, also known under the systematic name
tetrachloroethene, or
perchloroethylene ("
perc" or "
PERC"), and many other names, is a
chlorocarbon with the formula Cl2C=CCl2. It is a colorless liquid widely used for
dry cleaning of fabrics, hence it is sometimes called "dry-cleaning fluid." It has a sweet odor detectable by most people at a concentration of 1 part per million (1 ppm). Worldwide production was about one million
metric tons in 1985.
[1]
I doubt this would be readily available on the consumer market, but if it were, it sounds promising as a degreaser. I believe it is usually the chlorine content that ends up making this family of solvents fall into disfavor. Most likely an ozone killer.