Preheat the Grill:
Set your grill to medium-high heat (around 400°F).
Prepare the Corn:
Brush the corn all over with the vegetable oil to prevent sticking and help with charring.
Grill the Corn:
Place the corn directly on the grill grates. Cook for about 10–12 minutes, turning occasionally, until the corn is charred and tender on all sides.
Add the Mayo and Seasoning:
Remove the corn from the grill. While still warm, brush each ear lightly with mayonnaise.
Season:
Sprinkle each ear generously with Olde Thompson Elote Seasoning. Add more to taste if you like extra flavor.
Garnish:
Finish by sprinkling the chopped fresh cilantro over the corn.