Friction reduction at the ring-liner interface significantly enhances internal combustion engine performance. This study investigates the frictional behavior of laser-textured piston ring-liner pairs under varying operating conditions using a friction testing machine. Parame-ters such as dimple shape (circular, elliptical, rectangular, trapezoidal, non-textured), dimple density (7% to 35%), load (10N to 90N), speed (60 rpm to 1500 rpm), and temperature (30ºC to 150ºC) were analyzed using a Taguchi L25 array. Results indicate that a circular dimpled ring with 35% density, 90N load, 1500 rpm speed, and 150ºC temperature yielded the lowest coefficient of friction, reducing it by 40.81%. Rectangular dimples reduced friction by 60.12% under specific conditions. Elliptical, trapezoidal, and non-textured rings also showed signifi-cant friction reduction. Overall, circular dimples at high density, speed, load, and temperature offered the best frictional resistance.