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

<div>(a) Influence of load and speed on COF. (b) Influence of volume composition and load on COF. (c) Influence of volume composition and speed on COF.</div>

Advances in Tribology

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Figure 7

Figure 7: The Application of Response Surface Methodology in the Investigation of the Tribological Behavior of Palm Cooking Oil Blended in Engine Oil 

Figure 7 | The Application of Response Surface Methodology in the Investigation of the Tribological Behavior of Palm Cooking Oil Blended in Engine Oil 