I remove the radio tray, tank and center diff from the bottom and the motor from the top, brush or blow off all loose dirt, put a little wd 40 on all bearings and then wash and towel dry. Then, I use my own proprietary formula, Truggy Love, and everything looks awesome. Brush it on and wipe off any excess. Or, just brush it on very sparingly. It is not for sale but I am giving away samples if anyone wants to try it send me a pm. So far everyone that has used it has given a positive response.