Suburban 3/4 Ton 4WD V8-393 6.5L DSL Turbo (1993)
Refrigerant Oil: Fluid Type Specifications
REFRIGERANT OIL TYPE
-
R-12 refrigerant oil, 525 viscosity.
NOTE: If vehicle has been converted to R-134a use PAG (Polyalkaline Glycol) synthetic refrigerant oil (GM Part No. 12345923) or equivalent.