Red Line Synthetic MT-90 75W90 GL-4 Gear Oil Manual Trans (6 1-Quart Bottles)

gear gl line mt oil red synthetic

75W90 GL-4 gear oil (similar to SAE 5W40/10W40 engine oil viscosity). SAE Viscosity Grade (Gear Oil): 75W90. API Service Class: GL 4. ABOUT RED LINE GEAR OIL FOR MANUAL TRANSMISSIONS. RED LINE MT-90 HIGH-PERFORMANCE GEAR OIL is a fully-synthetic ester-based lubricant designed for use in manual transmissions and front-wheel-drive transaxles.