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

In stock and ready for next day delivery

Further Info

  • Fully-synthetic formulas created from polyol ester base stocks, offer excellent lubrication under extreme conditions
  • High viscosity-index (VI) to provide relatively constant viscosity and film thickness with varying temperature change
  • Ester base stocks and friction modifiers provide additional slipperiness to lower operating temperatures by reducing the sliding friction in hypoid gears
  • 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

Technical Details

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