United Synthetic Passenger Car Motor Oil SAE 0W-20, 5W-20 and 5W-30 is formulated with synthetic base oil, a shear stable viscosity index improver and utilizes an advanced detergent and dispersant package to provide excellent engine cleanliness and protection against low speed pre-ignition (LSPI). The full synthetic base oil in United Synthetic Passenger Car Motor Oil provides improved oxidation resistance, a high viscosity index to ensure protective films at high temperatures and enhanced cold temperature performance. In addition, United Synthetic Passenger Car Motor Oil contains wear control and friction modifiers, foam suppressants, corrosion inhibitors and an anti-oxidant package. The high level of detergency and dispersancy protects against sludge and rust, even under severe operating conditions. United Synthetic Passenger Car Motor Oil has low volatility for reduced oil consumption and protection of emission control system catalysts.