Pennzoil, qt, automatic transmission fluid, high quality based on high viscosity index mineral oils & carefully selected additives, blended to meet the stringent requirements of leading automotive transmission manufacturers, friction modified to provide consistent, reliable, smooth & trouble free operation of automotive transmission systems, high oxidation resistance to degradation & keeps automatic transmissions clean, good shear stability, a special vi improver minimizes the changes in viscosity with operating temperature, dependable anti-wear & gear protection for long component life, low temperature performance provides excellent oil fluidity at low temperatures.