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75W140NS GL-5 Gear Oil
75W140NS GL-5 Gear Oil

75W140NS GL-5 Gear Oil

  • Contains extreme pressure additives like our 75W140 GL-5 oil, but lacks friction modifiers to balance slipperiness
  • Popular for historic and vintage transmissions, like Mid-1930s to early-1950s synchro-equipped gearboxes in cars and trucks
  • Helps with noisy or rough shifting in troubled A-833 Dodge/Plymouth 4-speed transmissions from 1964 to 1969
  • Option for noisy transmissions when mixed with 75W90NS or MT-90 to bring viscosity level up
  • Also used in clutch-type limited-slip differentials in racing for maximum lock up-some users add Limited Slip Friction Modifier in small doses to customise slippage
  • Non-corrosive formula, safe for use with all synchro materials

In stock and ready for next day delivery

Further Info

These products contain the extreme pressure additives necessary for ultimate protection road cars and racing vehicles, as well as friction modifiers (except NS) for proper limited-slip operation

  • Fully-synthetic formulas created from polyol ester base stocks, offer excellent lubrication under extreme conditions
  • Ester base stocks and friction modifiers (except NS) provide additional slipperiness to lower operating temperatures by reducing the sliding friction in hypoid gears
  • High viscosity-index (VI) to provide relatively constant viscosity and film thickness with varying temperature change
  • Superior shear stability and reduced oxidation compared to other synthetics and conventional gear oils
  • Exceed API GL-5 specifications
  • Engineered to provide the highest degree of protection and improvement of differential efficiency for better mileage, longer drain intervals, and less wear

RED LINE HIGH-PERFORMANCE GEAR OIL is a fully-synthetic formula blended with ester base stocks for shear stability, less gear noise and more consistent viscosity in warm and cold temperatures. Extreme pressure (EP) additives allow for use with hypoid gears and friction modifiers are included for use with limited-slip differentials. Not for use in most manual transmissions with synchronisers, as slipperiness may cause gear clash.

OEM Compatibility:

API GL-5 & MT-1
MIL-PRF-2105E
SAE J2360

Historic & Vintage Synchro Transmissions
Rockwell 0-76-C
Used in SAE 140 Applications

Technical Details

75W140NS Data Sheet

75W140NS Safety Data Sheet

75W140NS White Papers

 

API Service Class GL 5+
SAE Viscosity Grade (Gear Oil) 75W140
Vis @ 100°C, cSt 26.9
Vis @ 40°C, cSt 179
Viscosity Index 188
Pour Point, °C -45
Pour Point, °F -49
Brookfield Viscosity, Poise 1200 @-40°C