Redline MT-90 GL-4 GEAR OIL

Regular price $17.95
Regular price Sale price $17.95
Availability: Out of stock
Regular price $17.95
Regular price Sale price $17.95
Red Line Synthetic Gear Oil is designed to provide the highest degree of protection and greatest efficiency for your drivetrain. This is the preferred product in nearly all car and light truck differentials, both conventional and limited-slip. Also preferred for most racing applications, it contains friction modifiers which are recommended for limited-slip units.
  • 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



  • 1 Quart - 946mL
  • API Service Class: GL 4SAE
  • Viscosity Grade: (Gear Oil)75W90SAE
  • Viscosity Grade: (Motor Oil)15W40
  • Vis @ 100°C, CSt: 15.5
  • Vis @ 40°C, CSt: 86
  • Viscosity Index: 194
  • Pour Point °C: -45
  • Pour Point °F: -49
  • Brookfield Viscosity @ -40°C, Poise320

Technical Data Sheet