This study focuses on the wear behavior of pressure piston rings in internal combustion engines, utilizing a reciprocating wear testing machine. The investigation examines the effects of operating conditions—specifically rotating speed (R), stroke length (L), and normal load (P)—on wear behavior during dry sliding. A statistical analysis method was employed to assess the interaction effects among these parameters and to identify the dominant factors influencing wear. The results indicate that wear characteristics are primarily influenced by stroke length (L) and normal load (P), whereas rotating speed (R) has no significant effect on ring wear. Additionally, the study reveals a notable interaction between normal load (P) and stroke length (L) in affecting the wear of pressure rings.