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MTL™ 75W80 GL-4 Gear Oil

We invented the manual trans gear oil market with this, right, Al Gore?

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MTL™ 75W80 GL-4 Gear Oil

  • Popular for BMW, Honda/Acura, Ford Focus, late-model Mini Cooper, Land Rover/Range Rover LT77S, Dodge & Jeep NV1500, NV3500 , NV3550 and NV5600 truck transmissions
  • Popular replacement for and improvement over GM Synchromesh® (#12345349), Auto-Trak II® (#12378508) and Chrysler spec MS-9224
  • Safe for brass synchros, as it lacks the reactive sulfurs found in most GL-5 oils that cause damage
  • Offers quicker shifts,  perfect synchronizer coefficient of friction
  • Eliminates notchy shifting, even when cold
  • High performance gear protection and longer synchro life
  • Satisfies the gear oil viscosity requirements of 75W, 80W and motor oil viscosities of SAE 30, 10W30 and 5W30
  • Recommended for GL-1, GL-3 and GL-4 applications as well as where most special synchromesh fluids are specified
$17.95
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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
  • 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

Typical Properties

API Service Class GL-4
SAE Viscosity Grade (Motor Oil) 5W30
SAE Viscosity Grade (Gear Oil) 75W80
Vis @ 100°C, cSt 10.4
Vis @ 40°C, cSt 54.1
Viscosity Index 185
Pour Point, °C -50
Pour Point, °F -58
Brookfield Viscosity @ -40°C, Poise 120

Available Sizes

Quart 50204
Gallon 50205
5 Gallon* 50206
16 Gallon* 50207
55 Gallon* 50208

*Only available from our dealers