The oil inside your car's engine can sludge up with neglect and infrequent oil changes. Sludge is a nasty contaminant that can destroy an engine if not given attention, but timely oil changes are a ...

Consumers saddled with sludge-clogged Toyota engines may soon get some help from the Japanese auto giant under the terms of a class-action lawsuit settlement that covers roughly 3.5 million Toyota and ...

Action by the Nebraska Department of Environmental Quality has placed the owners of two Chadron car wash businesses in a major quandry regarding the disposal of sludge from their wash bays, the ...