Re: Engine Oil additives - a good thing?
Don't add anything to the oil.
The engine doesn't need anything except an oil that meets the MB 229.3 or 229.5 spec, as those oils have everything in them that the engine will ever need.
Adding Slick 50 to the oil won't do anything positive for the engine at all, and that oil does not meet the MB specs, and can possibly cause damage instead.
BC.