A water base non-ionic detergent derived from citrus fruits.. It is a non-toxic  oleophobic oil and mildly alkaline cleaner.

Technical Bulletin

Product Label

An oleophobic detergent derived from citrus fruits.. It is a non-toxic and mildly alkaline cleaner. For degreasing engine and metal components. Use in garages, sevice stations, workshops, engineeiring, etc
Directions
HEAVY DUTY DEGREASING: Use undiluted mop or spray on. Brush if necessary to loosen impacted grease and dirt. Rinse thoroughly with water. GENERAL CLEANING/ DEGREASING: Dilute with up to 10 parts warm water. Mop or scrub as necessary to remove soilage. Seville Degreaser is suitable for use with suction dryers. Always rinse thoroughly with clean water after use.