High performance sealing and locking oil drain plug / sump plug with special O-ring washer/gasket included SMART-O was engineered to protect your engine and the environment. It’s the most advanced oil drain plug / sump plug featuring a patented sealing and locking mechanism to offer engine protection by reducing the risk of plug loss oil leaks and catastrophic oil loss. A special alloy reduces wear and stripping of oil pan threads. The industry’s first unified torque setting and a quick identification system allows faster installation. The relatively lower torque required reduces the risk of overtorqing the oil drain plug / sump plug. An intelligent O-ring material expands on exposure to oil offering a powerful sealing and locking mechanism. While reducing the risk of oil loss and engine oil pollution of our water this oil drain plug can be used as part of a green oil change solution – together with synthetic engine oil re-refined oil and a long life oil filter. Automotive Superstore AfterPay ZipPay Humm