The implementation of a regular micro-surface texture, namely in the form of micro dimples on metal surfaces, may provide substantial enhancements in reducing friction for lubricated mechanical components. The objective of this study was to examine the influence of surface texture geometry and tribological process parameters on aluminum alloy (Al alloy). Three varieties of plate samples having different surface textures were produced using conventional micromachining techniques. These samples were prepared for dimple diameters of 90, 120, and 240 µm, by maintaining the depth/diameter ratio as 0.16. Subsequently, these samples were subjected to reciprocating pin-on-plate tribological testing under six conditions, which were determined based on the load and speed parameters of a typical single-cylinder compression ignition (CI) generator engine. Coefficient of friction reduced in a range of 2.3–84%, depending on different texture configurations and test conditions. Moreover, superior outcomes were observed under situations of elevated speed and increased load.