Quaker State Full Synthetic 10W-30 motor oil is a superior performing product in the Quaker State family of products, reducing friction to maximize horsepower, protecting against the formulation of sludge and harmful deposits, and providing improved fuel economy. It is a high quality full synthetic motor oil specially formulated to deliver strong engine performance. Quaker State Full Synthetic motor oil is designed to protect today's sophisticated engines such as modern turbocharged engines.