bbq: As the gas BBQ grill was being turned off the grease catch pan came off the grill and spilled grease on a wooden deck, the grill and the tank. The grease was hot at the time it went on the deck.|||I had the same problem and this worked for me. First use a stiff brush and soapy water to clean the area as best as possible. 2. Rinse completely and let dry for about an hour. 3. Fill a spray bottle with undiluted bleach, (the same bleach you use to wash clothes is perfect) and spray the stained area. Wait a few minutes, or until the stain is almost gone then rinse with clear water. This works so well that you'll probably want to spray your entire deck and bring it back to the way it looked originally.|||try drenching the area or spot with a soap/water mix !?! let it sit awahile !! you may want to re`appply the mixture a few times!?! & brush lightly !! so you might not scratch the wood surface up tOo bad !?! take your time with it !! get rid of it slowly so you might not mess up a surface of something|||After reading all the other answers ... they are all correct. I have been power cleaning decks for some time and have tried all these practices with success. I have found that the product that works the fastest and with less hassle is going to the auto parts store or mass retailer and buying a can of BRAKE CLEANER. Brake cleaner actually breaks down the grease in an instant and evaporates almost immediately. I just rinsed off the area and it was done. I keep a couple cans with me all the time when going out to wash off decks. It also works on stubborn food or drink stains like koolaide ... Good luck.|||spray 409 on it, wait about 5 minutes and hose it off.|||Try using dish soap. It is made to break down grease. Scrub the area with a scrub brush and soap then rinse away. You may have to repeat a few times if the grease has soaked into the wood. You should get a grill mat to put under your grill and protect your patio.