Pertaining to the comments about my use of WD-40 to lubricate my hitch, I probably should have originally stated that I have a SuperGlide hitch. Here is what is says in the owner's manual:
"The Plastic Wear Plates of the SuperGlide’s Turntable Cam Arm Assembly were designed to glide along the surfaces without the need for heavy lubrication. To protect against rust and to enhance the ease of turning on the Way Tubes, a light oil (WD-40 or a 3-in-1 oil) should be applied to the Way Tubes’ top and inward facing sides and between the front and rear openings in the Plastic Wear Plates positioned around the Turntable/Cam Arm Shaft. A light lubricant that is applied more frequently (each day of use) is preferred over the use of heavier lubricants. Since any applied lubricant is going to be “wiped” off by the sliding action of the hitch, a light lubricant applied more frequently will perform better (reduce the friction between the plastic and steel surfaces), and will be less messy, as well as attract less dust and dirt."
I know WD-40 is used for water displacement, but it is also a lubricant. While lubricating the hitch, I also spray the spring loaded jaw & trigger mechanism and associated parts, as well as the flat top of the hitch that the king pin rides up on. You do have to clean the hitch every now and then, but I do not detect an excessive accumulation of dirt & grime.