Lightly brush each ear of corn with oil.
Grease and heat grill to high heat.
Once hot, add corn and close the lid.
Cook 2 - 3 minutes on each side, rotating the corn until all of the sides are lightly charred, about 10 - 12 minutes, closing the lid in between rotations; set the corn aside and allow to cool enough to handle.
Once cooled, cut the kernels off the cob and transfer to the dressing.