How much AdBlue does a Vehicle consume?
Your usage of AdBlue depends on your vehicle use, load being carried and driving style. As a guide, a tank of AdBlue typically lasts 12,000 to 16,000 km of normal driving for Everest, and 9,000 to 11,000 km for Transit & Transit Custom.
Further information can be found at https://www.ford.com.au/owners/service/ad-blue/.