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75W140NS GL-5 Gear Oil

Big protection but not slippery, for certain trans and diff applications.

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75W140 NS GL-5 Gear Oil
75W140 NS GL-5 Gear Oil
75W140 NS 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
  • Non corrosive formula, safe for use with all synchro materials
Availability: In stock
$23.53
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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

Data Sheet Downloads

Typical Properties

API Service Class GL 5+
SAE Viscosity Grade (Gear Oil) 75W140
Vis @ 100°C, cSt 26.9
Vis @ 40°C, cSt 162
Viscosity Index 200
Pour Point, °C -45
Pour Point, °F -49
Brookfield Viscosity, Poise 1200 @-40°C

Available Sizes

Quart 57104
Gallon 57105
5 Gallon* 57106
16 Gallon* 57107
55 Gallon* 57108

*Only available from our dealers

Suitable replacement for:

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

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