I v4C08 012 RPO DEFINITIONS I I I I 4IU EXTERIOR COLOR PRIMARY BLACK 57L EXTERIOR COLOR SECONDARY BEIGE METALLIC I I 57U EXTERIOR COLOR BE GE METALLIC y 85L EXTERIOR COLOR SECONDARY MEDIUM SLATE GRAY METALLIC 85U EXTERIOR COLOR PRIMARY MEDIUM SLATE GRAY METALLIC 87L SECONDARY COLOR EXTERIOR GUNMETAL MET 91 I 9 IU EXTERIOR COLOR PRIMARY PURF LE PEARL I I uf 1992 GENERAL MOTORS SERVICE PARTS OPERATIONS BUICK 44C T 8 000 GROUP 8 50 8 92