Welcome to the Nissan Patrol forum. To post a question and to see less adds on the forum then you will have to register
first. We are an easy going friendly forum so join in the conversations and feel free to ask any questions.
Become a forum sponsor for only $20 and see no adds with faster page loading times and many extras benefits.
If it has a grease nipper, grease it..
I personally use a high impact grease, will find out which one when home..
And use quality oils in the diffs and gearboxes.
As for rust protection there are a few different options.
Simple spray of lanotech spray, or you can use chassis black paint.
Or you can use a bitumen rubber based paint, much thicker, but messier to apply..
Imo a better option though..