"CONCENTRATED, BIODEGRADABLE, NATURAL HYDROCARBON SOLVENT ( NON-PETROLEUM ) FORMULATED TO CLEAN SOILS SUCH AS HEAVY GREASE, OILS, CARBONIZED DEPOSITS, TAR, LUBES, WASTE FATS AND RUBBER MARKS. HAS A CITRUS-PINE ODOR. DILUTION RATIOS VARY FROM 1:4 TO 1:20 FOR LIGHT SOILS, 1:2 TO 1:10 FOR MEDIUM SOILS AND 1:1 TO 1:2 FOR HEAVY SOILS"