RED LINE OIL 50508 Gear Oil MT-85 75W85 GL-4 208 L (55 gal) Photo-0

RED LINE OIL 50508 Gear Oil MT-85 75W85 GL-4 208 L (55 gal)

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RED LINE OIL 50508 Gear Oil for Manual Transmissions MT-85 75W85 GL-4 208 L (55 gal)

  • 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 85W, 75W85 and motor oil viscosities of SAE 30 and 5W30


  • 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

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 04637579, Chrysler/Dodge 04874459, Chrysler/Dodge 04874464, Chrysler/Dodge 9.5550-MZ1, Chrysler/Dodge MS-9070, Chrysler/Dodge NV4500, 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 235.16, MB 235.31, MB 235.4, MB 235.5, MB 001 989 14 03, MB MAN 341 Typ Z4, Mitsubishi 3717610, Mitsubishi DiaQueen Transmission Oil , Mitsubishi DiaQueen Super Multi Gear Oil, Mitsubishi 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, Tremec® HP-MTF™ Manual Transmission Fluid, VW/Audi G 052 190 , VW/Audi G 055 190

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
  • MT-LV, 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