bbq: I want to clean my grill today and I don't want to drive to town to find a commercial cleaner. I always try to scrape off the residue each time I BBQ, but it never seems to come clean. My grill grates are porcelain. Is it okay to use an oven cleaner?|||it seems to me that the grill cleans easiest when hot. I usually clean it before each use since we wait to heat it prior to cooking. I then take a wire brush to it, right on the bar-bee, and all that falls from it burns up. If you wish, you can lean it up and brush the underside too. Oven cleaner will not hurt it...just don't spray it on the burner itself.|||rent a pressure washer