My current van has an alko hitch for which I have the appropriate towball on my car.I may be required to tow my brother in laws caravan which has the older hitch. My question is ,will I need to change the towball.
I have seen people put a plastic bag over the ball when towing a greased hitch to keep it clean. Whilst it will keep the worst off, I would still give it a wipe over with a spirit based cleaner afterwards to be sure. (Paint thinner, acetone, brake cleaner etc...)