what are good ways to clean all of the dirt and grime off my nitro

slow down you making new post... You have 4 in a row that mostly can be easily answered by just using the search... Just use some denatured alchol and a air compressor to spray off the dirt...

Where you live I am sure you can have someone do it for you. HA!! HA!! Just kidding. I use water and a couple of good brush's a little one and a big one and now I am using a old electric tooth brush it works great. And for the hard stuff just get the nitro cleaner you can get like three cans for 12 bucks at some LHS and when I am all done cleaning the dirt all off I spray all of the plastic parts with WD-40 in the hubs and the hinge pins and the arms then wipe it down and she will look almost new. I hope this helps And I was really just pulling your leg about where you live.