WOLF GUARDTECH 80W90 GL 4

This is a gear oil for mechanical transmissions with moderate "extreme pressure" characteristics and is specifically developed to avoid corrosion of copper alloys.

It is suitable for the lubrication of syncromesh gearboxes, transfer boxes, mechanical steering controls and most rear axles (certain rear axles should be run in with a GL5 oil).

This reliable formulation ensures good frictional characteristics and easy gear shifting. It also helps to reduce oil degradation, thus extending gear life.

Test	Method	Unit	Average Results
Density at 15°C	ASTM D4052	g/ml	0.892
Kinematic viscosity at 40°C	ASTM D445	mm²/s	148
Kinematic viscosity at 100°C	ASTM D445	mm²/s	14.7
Viscosity index	ASTM D2270		98
Pour point	ASTM D6892	°C	-30
Copper corrosion (150°C, 3h)	ASTM D130		1
Flash Point COC	ASTM D92	°C	224