The Application of Response Surface Methodology in the Investigation of the Tribological Behavior of Palm Cooking Oil Blended in Engine Oil

<table class="table-group" id="tab4"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_left">Properties</td><td class="align_center">SAE 40</td><td class="align_center">Palm oil</td><td class="align_center">Waste oil</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left">Viscosity (mpa·s)</td><td class="align_center">179.2</td><td class="align_center">72.7</td><td class="align_center">180.6</td></tr><tr><td class="align_left">Density (g/cm<sup>3</sup>)</td><td class="align_center">0.8609</td><td class="align_center">0.9033</td><td class="align_center">0.9049</td></tr><tr><td class="align_left">Moisture content (%)</td><td class="align_center">0.19</td><td class="align_center">0.24</td><td class="align_center">0.28</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Advances in Tribology

tab4

Table 4

Table 4: The Application of Response Surface Methodology in the Investigation of the Tribological Behavior of Palm Cooking Oil Blended in Engine Oil 