Quaker State Ultimate Protection Full Synthetic motor oil is the best of the Quaker State family of products. Designed to protect today's sophisticated engines such as modern turbocharged engines, Quaker State Ultimate Protection 5W-30 meets the performance needs of GM vehicles (dexos1 Gen 3). This high-quality, full synthetic motor oil is formulated to reduce friction to maximize horsepower, protect against the formulation of sludge and harmful deposits, and provide improved fuel economy. Better for severe driving conditions than conventional engine oil*, Quaker State Ultimate Protection Full Synthetic has a synthetic base for added oxidation stability, improved volatility, and low-temperature properties. For a full list of equipment approvals and recommendations, please consult your local Quaker State Technical Help Desk and always consult your owner’s manual. (* Examples of severe driving conditions are stop-and-go driving, frequent short trips, extreme hot or cold temperatures, extensive idling, driving with heavy loads, or driving in dusty conditions.)