Red Line MT-90 75W90 GL-4 GEAR OIL

Red Line MT-90 Manual Transmission Fluid

Quart Bottle  -  RL 50304 

75W90 GL-4 gear oil (similar to SAE 5W40/10W40 engine oil viscosity)

Popular in Nissan, Mazda, Mitsubishi, VW/Audi, Lotus Elise/Exige, Toyota

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

Satisifies the gear oil viscosity requirements of 75W, 80W 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

• 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

Typical Properties