To drain engine oil, turn the lever of the nickel-plated brass ball valve, and when it’s time for an oil change, lift the lever and give it a quarter-turn to open; to close, return the lever back to its original locked position.
To drain the oil to a remote receptacle, screw in the optional hose end (sold separately), and connect a hose. For routine oil analysis, a small sample of oil can be drained from the valve without shutting off the engine.
