I've looked all over the internet as much as I can, and asked tractor mechanics, but I can't get a good answer. So I'm asking here. Doing a lot of dropping and hooking, it helps to keep the fifth wheel handle latch pivots lubricated. I'm talking about the pivots that are underneath the fifth wheel, not the jaws or the fifth wheel plate itself. Fifth wheel grease is too thick to use on these, and in cold weather, it can actually make the handle nearly impossible to pull out. I've been using PB Blaster, but as soon as there's a good rain, that stuff washes off. What IS the best kind of lubricant to use on these? It has to be thin enough that it will run down into the places it needs to go, and probably needs to be a sprayable lube, but not so thick that it either just sits on the surface of the pivot (like white lithium grease), or just wash back off almost immediately like PB Blaster.