Specially formulated to provide optimal wear protection* for many more miles to come, Quaker State High Mileage Full Synthetic 5W-30 motor oil is formulated for vehicles with over 75,000 miles. Quaker State Full Synthetic is also backed by 10,000-mile/1-year protection guarantee***, so you can keep what you love running smoothly. Designed to protect today’s sophisticated engines, Quaker State High Mileage Full Synthetic conditions the seals in your aging engine to prevent leaks and reduce oil burn-offs. With all the benefits of a full synthetic motor oil, it also delivers more power and less friction (compared to Quaker State motor oil), provides improved fuel economy (based on latest industry standard), offers excellent protection against the formulation of sludge and other harmful deposits (based on Sequence IIIH & VH tests), and provides superior lubrication flow and pumpability at high and low temperatures