In the continuing saga of finally getting my GTX on the road, I have now decided that I cannot let the rear main seal leak continue. It seemed to be a small leak, but appears to be getting worse now that I am finally really shaking it down on the road (over 200 miles this weekend). So I will be working on replacing the rear main seal soon...hopefully before Carlisle. In the meantime, does anyone have a good recommendation for how to clean the burnt oil residue off of the exhaust pipes? Unfortunately, the leak is starting to leave a little too much mess for my liking under the car. Any advice would be appreciated. Thanks.