This paper investigates the compressive properties of FDM 3D-printed PLA and PLA + CF materials across varying infill densities (40%, 60%, 80%, 100%) and their exposure to cooling lubricants for 7 and 30 days. Results reveal that PLA + CF exhibits superior compressive strength and stiffness compared to PLA, though with reduced ductility. Prolonged exposure to cooling lubricants negatively affects both materials, with PLA experiencing a more pronounced degradation in mechanical properties than PLA + CF, highlighting the latter's greater chemical resistance. The study addresses a critical gap in the understanding of the effects of real industrial environments, such as cooling lubricants, on the compressive mechanical properties of FDM components. The findings provide valuable insights for optimizing materials and printing parameters to improve the durability and performance of FDM-printed components under challenging operational conditions. Future research directions include exploring additional environmental factors and testing real industrial components.