Research Article

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

Table 5

Properties of blended volume concentration for waste oil.

Properties5% waste oil + SAE 4010% waste oil + SAE 40

Viscosity (mpa·s)192.1169.6
Density (g/cm3)0.86320.8639
Moisture content (%)0.140.19