How do I clean the underside of a vehicle?

[WindyCity]

Isn't the Fluid Film quite visible? It not clear correct? Just wonder how good it actually looks on a truck that is lifted and the underside is all exposed.

No it is not clear it is kinda mustard yellow but when you spray it on It looks like what ever you spray is wet






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[joemck]

As a non-truck owner I'm curious about the viability of trying to keep the underbody and suspension of a lifted truck looking really clean.

On a couple occasions I've cleaned out the wheel wells of my car and SUV, but even in dry conditions they are dusty and dirty within a day or two of on-road use. If it rains or snows, they are dirty in minutes. Isn't trying to keep the visible underbody bits spotless on daily driven lifted truck a losing battle?

Maybe so but as for now it is a battle I am willing to fight...

[DBAILEY]

I purchased a few aerosol cans of Fluid Film several years ago when I bought my newest car. I gave up trying to get the Bilt Hamber (Dyneq???) equivalent here in the US. I started spraying it on a few parts and didn't realize it was brown mustard color thinking it was going to be clear. I never applied it to the entire under carriage when I realized how hard it was going to be with the car just up on jack stands, and that a car lift is needed to do it right.

[Mike Phillips]

Here's how I used to do it to remove fresh mud...


How to clean mud off the underneath of your 4x4 the lazy man's way

[Mantilgh]

I found this product in the thread Mike linked. Didn’t know they carried this.

https://www.autogeek.net/corrosionx-16oz.html

[Mr_Anderson]

Put on some rain gear and eye protection, grab some kind of not-eco-friendly all purpose cleaner (if it burns your skin, eyes, and lungs, it'll get dirt off your undercarriage.) and an assortment of brushes. Now, get under your truck and get to work. Don't expect the rain gear to keep you dry either. It's job is to make it easier to clean yourself up when you're done.

[flamesagent]

Question on this topic...

For passenger cars, I have a BE PRESSURE 85.400.062 16" Undercarriage Cleaner, 4000 PSI wand (Amazon.com: BE PRESSURE 85.400.062 16" Undercarriage Cleaner, 4000 PSI: Industrial & Scientific).

This I can use to prewash the undercarriage but is there a different method to effectively apply an APC without having to either crawl under the vehicle? I don't have a way to lift the vehicle and spray.

Thanks.