Overview
GL-5 Grade is a synthetic transmission oil for certain manual gearboxes and axles, and for moderately to heavily loaded on- and off-road driveline applications. Grades: GL5 75W80, GL5 85W90, GL5 90, GL5 140, GL5 85W140. API 1560 describes GL-5 as intended for gears, particularly hypoid gears, in axles under high-speed shock load and low-speed, high-torque conditions.
Every grade has its own row in the specification table, with viscosity at 100 °C, viscosity index, flash point, pour point and density.
Application
Axles and drivelines
On- and off-road drivelines under moderate to heavy load where API GL-5 is specified.
Application
Certain manual gearboxes
Manual gearboxes whose manual permits a GL-5 oil.
Feature
Published values
GL5 75W80: KV100 9 cSt, VI 155, pour point -36 °C, flash point 190 °C; GL5 85W90: KV100 17 cSt, VI 90, pour point -18 °C, flash point 215 °C; GL5 90: KV100 17 cSt, VI 90, pour point -18 °C, flash point 210 °C; GL5 140: KV100 25 cSt, VI 95, pour point -9 °C, flash point 210 °C; GL5 85W140: KV100 25 cSt, VI 95, pour point -15 °C, flash point 215 °C.
