Valvoline 80W-90 DuraBlend Synthetic Blend Gear Oil - 1qt (Case of 12) (VV280-12PK) Superior anti-wear, anti-scuffing and corrosion protection Provides superior performance at low temperatures Helps improve fuel efficiency Resists breakdown at high temperatures Recommended for (conventional and limited slip) manual transmissions where an API GL-5 or MT-1 fluid is specified