I wouldn't use copper grease. It's moslty used where you want anti corrosion/sieze properties (nuts and bolts) or where thyere might be higher temps (brakes) I think it isn't such a useful general lubricant.
I just smear on some genral purpose grease. (froma tub I bought yonks ago :-) )
Copper is a metal which is an excellent conductor of heat that's why they use it for lightning conductors on buildings because it's a cheaper alternative to lead which often gets stolen for it's value therefore Copper grease only needs to be used in certain applications where heat is generated to avoid melting such as brake pads and brake shoes etc. In fact, the application you need lubrication for ie. the towball, you don't require any type of high melting point grease so a general all purpose grease will be sufficient for towball hitch movement.
Sorry for the long post but it pays to explain in detail the reasons for not needing Copper grease for the towball.
Quote: Originally posted by malkeiron on 02/8/2018
Previous trailers and caravans with standard hitch I used vaseline.
Vaseline is a petroleum based gel which doesn't have the the same composites as that of an oil based grease. I suppose it would work for a short while but wouldn't prevent any wear between the two metal contacts I wouldn't have thought.
Quote: Originally posted by malkeiron on 02/8/2018
Previous trailers and caravans with standard hitch I used vaseline.
Vaseline is a petroleum based gel which doesn't have the the same composites as that of an oil based grease. I suppose it would work for a short while but wouldn't prevent any wear between the two metal contacts I wouldn't have thought.
Your probably correct but it stopped any rusting, squeaking,etc and was a handy little size tub to tuck away. 😁
When we had a conventional hitch where grease was required, I used L10 lithium based grease - that similar to which is used to pack wheel bearings.
Bertie.
Lithium grease here too - I bought a small can of it about 20 years ago, still half of it left. Also gets used for battery terminals, bonnet catches and anything else I can think of when I'm wandering around the car with the can in my hand.