Table 3.

Basic physico-chemical properties of the oils.

Oil	Property	Test Method	Value
Castrol Axle EPX 80W-90	Density at 15 °C	ASTM D4052	0.896 g/mL
	Kinematic viscosity at 40 °C	ASTM D445	134 mm2/s
	Viscosity index	ASTM D2270	101
	Pour point	ASTM D97	−33 °C
	Flash point	ASTM D92	222 °C
Castrol EDGE 5W-30	Density at 15 °C	ASTM D4052	0.851 g/ml
	Kinematic viscosity at 40 °C	ASTM D445	70 mm2/s
	Viscosity index	ASTM D2270	169
	Pour point	ASTM D97	−42 °C
	Flash point	ASTM D93	202 °C