Royal Purple High Performance Synthetic Motor Oil - SAE 10W30 - 1 Quart Valve Stem Core Turn-off temperature is preset at

Turn-off temperature is preset at 175 degreesF

It features a deep sump and built in slosh baffle for oil control and a magnetic drain plug

R1500 Suburban 1991-1987

They are upgradeable to adjustable shafts and can be converted to a coilover (kit sold separately)

Vacuum Port options include (2) 1/8

Royal Purple High Performance Synthetic Motor Oil - SAE 10W30 - 1 Quart Valve Stem Core Turn-off temperature is preset atRoyal 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.