Heat the grill to medium-high. Season the wings with salt and pepper.
Using grill tongs, dip a wad of paper towels in oil, then carefully rub the grill grate until glossy and coated. Grill the wings, covered, flipping occasionally, until they are golden brown, crispy and completely cooked through, about 20 minutes.
If there are flare-ups or the wings begin to burn, move the wings to a cooler part of the grill or reduce the heat. Try to avoid grill marks on the wings and aim for a nice even golden-brown colour.
While the wings are cooking, make the sauce. Put the butter in a microwave-safe bowl and microwave for about one minute until the butter is melted. Stir in the hot sauce, salt, onion powder, garlic powder and chili powder. Set aside.
Dip the cooked wings in the sauce and serve immediately or serve the wings plain with the sauce on the side.