my freind asked me to tow him off a muddy pitch ,but as he had an older caravan with a greased hitch ,i said ok have you got rope or some white spirit so i can clean my tow ball ,otherwise the grease from your hitch will contaminate the pads on my combined hitch & stabiliser ,as he didnt have either i had to refuse his request ,he then asked the site owners to tow him off ,i frequently see caravans being towed off site ,to go into storage ,by the storage owners ,the towballs are never cleaned so the new caravan stabilisers must be next useless