Motul Gear 300 75w90 is our go to gear oil for differentials. This 100% synthetic lubricant is for all high performance mechanical transmissions in racing cars. For synchronized or not synchronized gearboxes, gearbox/differential, transfer gearboxes and hypoid differentials without limited slip system operating under shocks, heavy loads and low revolution speed or moderate loads and high revolution speed. 0% shear loss: Unshearable oil film in extreme conditions. Very high lubricating power which decreases friction and wear. 90 grade at hot temperature to provide outstanding oil film resistance at hot temperature and/or to reduce transmission noise. Fluid at low temperature to allow comfortable gear shifting.
- If you have a clutch type LSD you will need to add a friction modifier additive!
PROPERTIES
Viscosity grade SAE J306 75W-90
Density at 20°C (68°F) ASTM D1298 0.897
Viscosity at 40°C (104°F) ASTM D445 72.6 mm²/s
Viscosity at 100°C (212°F) ASTM D445 15.2 mm²/s
Viscosity index ASTM D2270 222
Flash point ASTM D92 200°C / 392°F
Pour point ASTM D97 -60°C / -76°F
