Red Line 75W90 NS GL-5 Gear Oil

Red Line 75W90 NS GL-5 Gear Oil

Red Line 75W90 NS GL-5 Gear Oil | Non-Slip Transaxle Fluid - 2to4wheels

Get the Red Line 75W90 NS GL-5 Gear Oil for smoother shifting in manual transmissions and transaxles. High hypoid protection, improved synchro life, and maximum racing LSD lock-up.

The Red Line 75W90 NS (Non-Slip) GL-5 Gear Oil is a specialized, fully-synthetic lubricant engineered using stable polyol ester base stocks to deliver exceptional performance and protection under extreme conditions. Unlike the standard 75W90 GL-5, the "NS" formula lacks friction modifiers, which is crucial for specific applications.

This non-slip characteristic helps to slow synchronizers for easier, smoother shifting in manual transmissions and transaxles, particularly across a broad temperature range. This makes it a popular choice for high-performance applications like Ferrari, Porsche, and Subaru transaxles, as well as classic muscle car transmissions such as Ford Top Loader, Borg-Warner T-10, and Muncie.

While it lacks the friction modifiers that can cause excessive slipperiness for synchronizers, it maintains extreme pressure (EP) additives for superior protection of hypoid gears. This formula also offers improved copper corrosion protection to significantly prolong synchronizer life.

For differentials, the lack of friction modifier promotes maximum lock-up in clutch-type Limited Slip Differentials (LSDs) used in racing. It can also be fine-tuned for street use or weak LSDs by adding Red Line Limited Slip Friction Modifier (sold separately).

Specifications & Recommendations:

• API Service Class: GL-5+

• Viscosity Grade: SAE 75W90

• Viscosity Index: High VI (typically 176+) for stable film thickness.

• Recommended for API GL-5, GL-6, MT-1, MIL-L-2105E, and SAE J2360 applications.

• Non-corrosive formula, safe for use with all synchro materials.

Best Uses:

• Manual Transmissions & Transaxles: Ideal for applications requiring GL-5 protection where a GL-4 lubricant is unsuitable, particularly those with finicky synchronizers (e.g., Porsche, Ferrari, Subaru).

• Racing Limited Slip Differentials (LSDs): Maximizes lock-up in clutch-type LSDs for ultimate racing performance.

• High-Torque/High-Mileage Manuals: Excellent gear and synchro protection for high-stress applications.

• Classic/Muscle Car Transmissions: Suitable for Ford Top Loader, Muncie, and Borg-Warner T-10/Super T-10.

• Hypoid Gear Protection: For any application requiring superior protection under extreme pressure.

5 Features:

1. Non-Slip (NS) Formula: Specifically omits friction modifiers to improve synchronizer engagement and shifting.

2. Full-Synthetic Ester Base Stocks: Provides exceptional shear stability and thermal stability under extreme heat.

3. High Hypoid Gear Protection (GL-5+): Contains extreme pressure (EP) additives for maximum gear wear protection.

4. Improved Copper Corrosion Protection: Prolongs the service life of brass/bronze synchronizer components.

5. Tuneable LSD Lock-up: Can be customized for street or race use with the separate Red Line Limited Slip Friction Modifier.

5 Benefits:

1. Smoother, Quicker Shifting: Helps to slow synchros for improved shift feel across a wide temperature range.

2. Maximum Racing LSD Performance: Achieves optimal clutch-type limited-slip differential lock-up.

3. Extended Component Life: Superior EP additives and corrosion protection extend the life of gears and synchros.

4. Reduced Operating Temperatures: Synthetic formula reduces sliding friction, potentially lowering differential temps by 10°F to 70°F.

5. Consistent Performance: High Viscosity Index (VI) maintains film thickness and stability under fluctuating heat.

Red Line 75W90NS Gear Oil Quart

Since most GL-5 gear oils for differentials are too slippery for manual transmissions, Red Line offers these products that ensure proper shifting while providing ultimate wear protection

• Appropriate coefficient of friction for most manual transmission synchronizers (other's synthetic gear oils are often too slippery for proper synchro engagement)
• Red Line offers lubricants to pinpoint nearly every transmission application
• MT-LV, MTL, MT-85 & MT-90 are not for use in differentials with hypoid gears
• Excellent gear and synchro protection, balanced slipperiness for easier shifting in cold climates
• Excellent for high- and low-mile transmissions
• Compatible with petroleums and other synthetics

RED LINE 75W90NS HIGH-PERFORMANCE 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.

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

TYPICAL PROPERTIES