Red line 75W90 is a synthetic gear oil recommended for use in rear differentials. Friction modifiers have been added to the oil making it suitable for clutch plate type LSD's in both road and competition cars.
Engineered to provide excellent lubrication under extreme conditions and to give the highest degree of protection and improvement of differential efficiency for better economy, longer drain intervals, and less wear.
Red line 75W90 is not recommended for use in synchromesh gearboxes.
Exceeds API GL5 Specifications.