Quaker State All Mileage 10W-40 conventional motor oil provides protection for new and old vehicles. Quaker State All Mileage 10W-40 motor oil is formulated to provide durable wear protection that helps engines survive daily commutes under all driving conditions. Not only is Quaker State All Mileage Motor Oil designed to protect new engines, but it also has anti-wear additives that help protect against wear that high mileage engines experience to help stop leaks and reduce oil consumption in worn engines. Quaker State All Mileage 10W-40 motor oil can be mixed with other synthetic and mineral motor oils. Always consult your owner's manual for the correct viscosity grade and performance recommendation required for your vehicle.