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Red Line Synthetic 75W90NS GL-5 Manual Transmission Fluid

Red Line 75W90NS is a non-slip gear oil, for transaxles that need hypoid-protection and smooth shifting.
Variant Title Product Code
Red Line 75W90NS GL-5 Manual Transmission Fluid - 1 US Quart (0.946 Litre) redline-58304
Red Line 75W90NS GL-5 Manual Transmission Fluid - 2 x 1 US Quart (1.892 Litres) redline-58304#2
Red Line 75W90NS GL-5 Manual Transmission Fluid - 3 x 1 US Quart (2.838 Litres) redline-58304#3

Availability: In Stock

RRP: £22.14

Our Price From Excl. VAT: £16.61 From Incl. VAT: £19.93

You Save: £2.21 (10%)

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Product Description


  • Designed for transmissions and transaxles - helps to slow synchros for easier shifting across a broad temperature range
  • Popular in Ferrari, Porsche and Subaru transaxles
  • Muscle Car applications like Ford Top Loader, Muncie transmissions, Borg-Warner T-10 and Super T-10
  • Contains extreme pressure additives like our 75W90 GL-5 oil, but lacks friction modifiers to balance slipperiness
  • Improved copper corrosion protection to prolong synchro life
  • Helps with lock-up on weak limited-slip differentials-compatible with Red Line Limited Slip Friction Modifier for tuning slippage
  • Also used with clutch-type LSDs in racing for maximum lock up
  • Recommended for API GL-5, GL-6, MT-1, MIL-L-2105E and SAE J2360

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

OEM Compatibility

RED LINE 75W90NS HIGH-PERFORMANCE GEAR OIL is a fully-synthetic formula with ester base stocks, designed for use in manual transmissions and transaxles that require GL-5 lubricants. This non-slip formula is formulated for shear stability, less gear noise and consistent viscosity. Extreme pressure (EP) additives allow for use with hypoid gears, but the lack of friction modifiers causes less slipperiness for proper synchronizer operations. Friction modifier can be added or used to customize limited-slip differential operation.

Suitable replacement for:

Porsche N052911CO
Dodge/Jeep 4549636
GM 88862475
Subaru SOA635011
Agip 75W-90 SX
Agip SXA 75W-90
Mobil Mobilube 75W-90 SHC
Mobil Delvac 75W-90
Mobil Mobilube PTX 75W-90
Shell Spirax EP 90
Shell Transaxle Oil 75W-90
Shell Spirax S5 ATE 75W-90



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