I use either a can of engine degreaser or sometimes I just use Simple Green. The key is to not let it get too dirty. If you keep up with it it cleans pretty easily. I have not had any issues with getting water where it causes problems. Good luck.
2007 Jeep Green Limited 4.7 Flex Fuel, RR 2.5" 4 inch Superlift coils on rear, 1.5" Spacers, Bridgestone 265/70/17, K&N CAI, Flowmaster, Diamond Plate Locking Trunk, Blue Ox Baseplate w/D-rings, "Get Lost 4X4" Front Bumper, T-Max 9000 winch, "Get Lost rear tire carrier, 30 gal second gas tank.
Second 2007 Jeep Green Limited Leather HEMI QDII VES Uconnect Flowmaster OEM Skids Tow Package
Maybe the two will meet up soon edit: they did , I now have 2,now gave 1 away