2200 miles thats looking pretty rusty... doesnt honda have a rust warranty for the first 10k miles? Yeah the part wont turn to dust, but in another 100k dont be surprised if the rust wore away at the metal enough to hit a hard pothole and snap something out of warranty. Cant hurt to have honda at least look at it
Similar parts on Gen 1 weren't painted either and rusted just as you are experiencing. I asked Gary Flint about it at the 2008 meet. The cut-away Gen 1 had the few unpainted parts. Those are hardened metal pieces and the rust patina that develops will serve it just as well as paint.
Fluid Film - I have the inexpensive spray gun that hooks up to a compressor - fill the bottle, dial in 60 - 90 psi (whatever seems to work best), crawl under (or drive on ramps) and spray away! Coat everything. Fluid Film is lanolin based and environmentally friendly it does, however, have a unique smell (which does wear off over time) - it's not a bad smell, just a fairly powerful smell for a short while! Recoat once a year and DON'T get the bottom blasts at the touch-less car washes.
It is cost savings, plus as others have said, a large cast part is not going to turn to dust. When I worked for a paint company, we visited Ford and they were stopping paint on non-cosmetic underbody parts to shave some dollars off every vehicle.
Since my previous post seems to have been overlooked, I'll repeat myself.
Some steel formulations (and I don't know what particular steel alloys these Honda parts are) are created not to be painted. I don't think these are corten steel parts, but if you research corten, you'll learn that the rust patina that develops actually strengthens the steel.
From the all-knowing Wikipedia: "The corrosion-retarding effect of the protective layer is produced by the particular distribution and concentration of alloying elements in it. The layer protecting the surface develops and regenerates continuously when subjected to the influence of the weather. In other words, the steel is allowed to rust in order to form the protective coating."
Again, I asked Gary Flint, the lead engineer on the G1 Ridgeline at the 2008 meet. The multi-thousand dollar cutaway RL had the same rusty parts. He said they were supposed to be that way.
Does it really make any sense that Honda would spend time, energy and money painting all the other parts under the truck, but not paint those?
I saw this on a Tacoma forum and really liked it.
Post pics of things you did to your g2 today. Try to keep chat to a minimum so people can look through and just see mods.
To start I did my first mod. Got rid of the chrome bumper parts on RTL with carbon vinyl.
I finally had some time to black out my emblems with Plasti Dip. It was a beautiful warm partly cloudy day. So I mask everything off and began the task.
The first coat was just a fine mist, just to give the second coat something to better stick to. These photos were after the second coat...