Royal Purple High Performance Synthetic Motor Oil - SAE 5W30 - 5 Gallons Wall Mount Mirrors Transmission Removal Not Required

Transmission Removal Not Required

perfect for high-end street and race engines with higher spring pressures

50 thread size

Must have substantial airflow upgrades

1961-1963 GMC 2500 Series

Royal Purple High Performance Synthetic Motor Oil - SAE 5W30 - 5 Gallons Wall Mount Mirrors Transmission Removal Not RequiredRoyal Purple(R) Motor Oil delivers superior protection and improves performance in four cycle gasoline and diesel engines. It increases horsepower and torque, saves fuels and reduces heat, wear and emissions. It has unsurpassed oxidation stability that allows for extended oil drains and fewer oil changes, which saves you time and money and reduces the impact on the environment. Royal Purple's motor oils for passenger cars and trucks are API licensed.