bbq: There are "smoke rings" at the base of the top. Can I, or should I try to erase these marks? Great BBQ, just trying to maintain in great shape. Thanks for any info. Larry|||Use WD-40. It should remove the rings, unless the paint/powder coating is actually damaged. After using the WD-40, use windex or something similar to clean the WD-40 off the lid. It's not flamable but why chance it.|||Best thing I have ever found to clean my grill is to take it to a car wash and spray it with engine degreaser and then hose the unit down with the high pressure hose....It came out like new!