WARNING: This page is about a different car, the 2014 Lincoln MKX and 2014 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Refer to the appropriate Engine article
for the specification.
Measure the cylinder bore in 2 directions. The difference is the out-of-round.
Fig 1: Identifying Cylinder Bore Dimension Measuring Direction