T & T Safety Solvent. 

Spray directly into electric motors while in operation.  Rapidly cuts through oils, grease and grime on metallic and non-metallic surfaces.  Use on Motors, electrical equipment, ignition systems, printing equipment, relays, switches, metal mold, generators and assemblies.  Saturate surface with spray.  Allow dwell time and wipe away.  Pre-test on some rubber and paints.  Aerosol