Red Line® 75W90 NS GL-5 Gear Oil is a fully-synthetic formula with ester base stocks, designed for use in manual transmissions and transaxles that require GL-5 lubricants. This non-slip formula is formulated for shear stability, less gear noise and consistent viscosity. Extreme pressure (EP) additives allow for use with hypoid gears, but the lack of friction modifiers causes less slipperiness for proper synchronizer operations. Friction modifier can be added or used to customize limited-slip differential operation.

• Designed for transmissions and transaxles that need hypoid-protection and smooth shifting
• Helps to slow synchros for easier shifting across a broad temperature range
• Popular in Ferrari, Porsche and Subaru transaxles
• Muscle Car applications like Ford Top Loader, Muncie transmissions, Borg-Warner T-10 and Super T-10
• Contains extreme pressure additives like our 75W90 GL-5 oil, but lacks friction modifiers to balance slipperiness
• Improved copper corrosion protection to prolong synchro life
• Helps with lock-up on weak limited-slip differentials-compatible with Red Line Limited Slip Friction Modifier for tuning slippage
• Also used with clutch-type LSDs in racing for maximum lock up
• Recommended for API GL-5, GL-6, MT-1, MIL-L-2105E and SAE J2360
• Non corrosive formula, safe for use with all synchro materials
• Excellent for high- and low-mile transmissions
• Compatible with petroleums and other synthetics

OEM Compatibility

Suitable replacement for: 
Alfa Romeo
Agip 75W-90 SX, Agip SXA 75W-90
Dodge/Jeep 4549636
Ferrari 75W90
GM 88862475, GM 88862476
Mobil Mobilube 75W-90 SHC, Mobil Delvac 75W-90, Mobil Mobilube PTX 75W-90
Porsche 000 043 204 19, Porsche 000 043 204 71, Porsche 000 043 210 12, Porsche 000 043 304 71, Porsche 000 043 305 00
Porsche 000 043 305 48, Porsche Mobilube PTX, Porsche N-052-911-CO, Porsche SHC 75W90
Spirax S5 ATE
Shell Spirax EP 90, Shell Transaxle Oil 75W-90, Shell Spirax S5 ATE 75W-90, Shell TF 1055
Subaru SOA635011
T-10/Top Loader/Muncie