Are you talking about cleaning the car itself or making it less toxic to the environment? If it is the later then I’m thinking of bringing my 1982 AMC Concord to the junk yard just to get it off the road. It still runs and the body is in pretty good shape for a Maine car considering that the state uses a lot of road salt and calcium cloride. Maybe as a last hurrah I should donate it to a local demolition derby…any takers?