ACDelco Manual Transmission Fluid, SAE 75W-90 GL-4 is a long-life, partial synthetic oil. It is specifically designed to prevent the development of layers on the clutch plates, allowing the clutch to function problem-free over extended periods. This product is for use only in vehicles with a model year 2009+ Haldex limited slip coupling. It is for application in Haldex wet clutches with sinter and organic plates.