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  • Regular price $50.22
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  • Recommended for Nissan 350Z and 370Z (also most Maxima, Altima & Sentra), Mitsubishi Evolution, Hyundai, Kia and Quaife synchro manual trans applications
  • Many NV4500 truck transmission applications like Chevy Silverado and Dodge Ram, for Chrysler spec MS-9070
  • Safe for brass synchros, as it lacks the reactive sulfurs found in most GL-5 oils that cause damage
  • Offers quicker shifts, a perfect synchronizer coefficient of friction
  • Eliminates notchy shifting, even when cold
  • High performance gear protection and longer synchro life
  • Recommended for GL-1, GL-3 and GL-4 applications as well as where most special synchromesh fluids are specified
  • Satisfies the gear oil viscosity requirements of 75W, 80W, 85W and motor oil viscosities of SAE 30 and 5W30

Product Details

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
  • These products contain the extreme pressure additives necessary for ultimate protection road cars and racing vehicles, as well as friction modifiers for proper limited-slip operation
API Service Class GL 4
SAE Viscosity Grade (Gear Oil) 75W85
SAE Viscosity Grade (Motor Oil) 5W30
Vis @ 100°C, CSt 12
Vis @ 40°C, CSt 62
Viscosity Index 198
Pour Point, °C -48
Pour Point, °F -54
Brookfield Viscosity @ -40°C, Poise 160
Quart 50504
Gallon 50505
5 Gallon* 50506
16 Gallon* 50507
55 Gallon* 50508

*Only available from our dealers


OEM Compatibility

RED LINE MT-85 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 75W85/85

Castrol BOT 0063
Castrol BOT 402
Castrol Syntorq LT
Chrysler/Dodge 4637579
Chrysler/Dodge 4874459
Chrysler/Dodge 4874464
Chrysler/Dodge MS-9070 
Fiat/Alfa 9.5550-MZ1
Fuchs-Titan Pro SRG 75
GM 1940182
GM 10953477
GM 12346190
GM 88862472
GM 88862473
GM 93165290
GM 93740319
Hyundai/Kia 04300-00110
Hyundai/Kia 04300-00140
Hyundai/Kia 08950-00020-A
Hyundai/Kia 08950-00020-B
Kia  API GL-4 SAE 75W-85, fill for-life
MB 235.4
MB 235.5
MB 001 989 14 03
MB  MAN 341 Typ Z4
Mitsubishi 3717610
Mitsubishi DiaQueen Transmission Oil MZ313376
Nissan MTF HQ Multi 999MP-MTF00P
Nissan KE916-99931
Nissan KE916-99932R
Nissan KE916-99942R
Nissan KE916-99962
Nissan KLD26-75802
Nissan MT-XZ
Opel B 040 2071
Syntorq LT
VW/Audi G 052 190 
VW/Audi G 055 190