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MT-90 75W-90 GL-4 Manual Transmission Lubricant (1 Gallon) by Red Line

Red Line ★ 4.0/5 · ItemOracle Score Mid-Range

$91 USD
Price subject to change
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Red Line 50305 MT-90 75W-90 GL-4 Manual Transmission and Transaxle Lubricant (MTL) - 1 Gallon

MT-90 75W-90 GL-4 manual transmission lubricant by Red Line. Improves shifting feel and reduces notchy shifts. Customers note smoother, quieter shifts and strong quality for older units

Highlights

  • enhanced synchronizer performance
  • good for older units
  • 75W-90 GL-4 compatibility

Pros

  • improves shifting feel
  • reduces notchy shifts
  • smooths and quiets operation
  • strong quality for older units

Cons

  • mixed value perception on price

Best For

  • manual transmission lubrication
  • transaxle lubrication
  • older vehicle transmissions
  • GL-4 gear oil applications
  • cruising and daily driving transmissions
  • vehicles requiring 75W-90 viscosity

Features

  • Suitable for GL-1, GL-3, and GL-4 applications with brass synchros safe
  • Provides quicker shifts through precise synchronizer friction characteristics
  • Designed for 75W viscosity range and compatibility with 80W, SAE 40, 10W40, and 15W40 motor oil
  • Lacks reactive sulfur common in GL-5 oils, reducing potential gear damage
  • Popular choice for manual transmission and transaxle lubrication

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