Oceanblue MT-90 Red 1 qt Gear Oil | sku-16640472573

Oceanblue MT-90, sku-16640472573, is a Red, 1 qt Automotive Fluids listing with UPC 160772970618. The source identifies the product as Red Line 50304 75W-90 GL-4 manual transmission and transaxle lubricant in a 4 Pack. It is recommended for GL-1, GL-3 and GL-4 applications and where most special synchromesh fluids are specified.

The stated viscosity requirements include 75W, 80W, SAE 40, 10W40 and 15W40 motor oil. Its synchronizer friction is described as reducing notchy shifts, including when cold, while protecting gears and extending synchro life. It is described as safe for brass synchros because it lacks the reactive sulfurs found in most GL-5 oils. Red Line was established in 1979.