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Red Line Synthetic MT-90 75W90 GL-4 Manual Transmission Fluid

Red Line MT-90 is the most popular, the most viscosity, the most applications.
Variant Title Product Code
Red Line MT-90 75W90 GL-4 Manual Transmission Fluid - 1 US Quart (0.946 Litre) redline-50304
Red Line MT-90 75W90 GL-4 Manual Transmission Fluid - 2 x 1 US Quart (1.892 Litres) redline-50304#2
Red Line MT-90 75W90 GL-4 Manual Transmission Fluid - 3 x 1 US Quart (2.838 Litres) redline-50304#3
Red Line MT-90 75W90 GL-4 Manual Transmission Fluid - 1 US Gallon (3.78 Litres) redline-50305
Red Line MT-90 75W90 GL-4 Manual Transmission Fluid - 2 x 1 US Gallon (7.56 Litres) redline-50305#2
Red Line MT-90 75W90 GL-4 Manual Transmission Fluid - 4 x 1 US Gallon (15.12 Litres) redline-50305#4

Availability: In Stock

RRP: £21.42

Our Price From Excl. VAT: £15.17 From Incl. VAT: £18.20

You Save: £3.22 (15%)

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Product Description


  • Popular in Nissan, Mazda, Mitsubishi, VW/Audi, Lotus Elise/Exige, Toyota, Mendeola transmissions and Atlas transfer cases for Off Road
  • Offers quicker shifts, perfect synchronizer coefficient of friction
  • Safe for brass synchros, as it lacks the reactive sulfurs found in most GL-5 oils that cause damage
  • High performance gear protection and longer synchro life
  • Eliminates notchy shifting, even when cold
  • Satisfies the gear oil viscosity requirements of 75W90, 80W90, 90 and motor oil viscosities of SAE 40, 10W40 and 15W40
  • Recommended for GL-1, GL-3 and GL-4 applications, as well as where most special synchromesh fluids are specified

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 MT-90 HIGH-PERFORMANCE GEAR OIL is a full-synthetic ester-based lubricant designed for use in manual transmissions and front-wheel-drive transaxles. This shear-stable formula resists breakdown for extended periods and offers more consistent viscosity in warm and cold temperatures for less gear noise and improved shifting. This fluid is less slippery for improved synchronizer coefficient of friction and offers stronger film strength for better wear protection.

Suitable replacement for:

API GL-4/GL-3/GL-1
SAE 75W90 SAE 90/80W90
SAE 40/10W40/15W40

Alfa Romeo
Audi G 052 911
BMW 81 22 9 407 305
Castrol BOT 130M
Castrol BOT 328
Castrol SAF AG4
Castrol SHC 630
Castrol TAF-X 75w-90
Castrol Syntrans Transaxle 75W-90
Ford F32Z-19C547-MA
Ford M2C175-A
Ford M2C200-B
Ford WSS-M2C203-A1
Ford XT-4-QGL
GM 12345371
GM 12345724
GM 12345871
GM 12346074
GM 89021806
GM 89021807
GM-Daewoo EDS-M-8049
Hyundai/Kia 08950-00010-A
Jeep 0489722AA
Mazda (MES) 115A
Nissan Mission Oil MP-G HQ
Toyota 08885-80917
Toyota 08885-81023
Toyota 08885-81026
VW/Audi G 005 000
VW/Audi G 005 100
VW/Audi G 045 190 A2
VW/Audi G 052 145
VW/Audi G 052 157
VW/Audi G 052 911
VW/Audi G51
VW/Audi G50



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