How often to flush coolant on Infiniti Qx4?

For the Infiniti QX4, it's generally recommended to flush the coolant every 30,000 to 50,000 miles, or every 2 to 3 years, depending on driving conditions and the type of coolant used. Regular checks of the coolant level and condition can help determine if a flush is needed sooner. Always consult the owner's manual for specific recommendations based on your vehicle's model year.