Coat my steaks with a brush of Vegetable oil and a steak seasoning powder, I usually get my steaks from Costco, usually a 4 pack size of Sirloins so you can guess the size, nice big steak!
I do them one side for about 6 to 7 minutes a side (turning about 40 degrees after 3 minutes, for the criss cross marks) than turn once for the other side.
Last night with my steak we had baked potatoes and I did a summer squash wrapped in foil a little EVOO and italian seasoning mixture, wrap in foil and put on the top rack of grill for about a half hour, delicious!