Fluid Film & Sand

[thatJeepguy]

Id do CRC on any underbody frame, body areas (make sure its clean first) and only stuff that runs inside frames , rockers etc..... less mess and effective. I have a really clean underbody after 5 years, 75k miles and michigan winters. Any areas ie a couple welds that have some rust I just hit with CorrosionX Extended Duty to kill it off.

Nice , how are you handling cleaning? Degreaser? Sodium hydroxide based is what i use. Good call on the corrosion x.

 

[dsiggi]

Nice , how are you handling cleaning? Degreaser? Sodium hydroxide based is what i use. Good call on the corrosion x.

I did mine from brand new so I had a good base to start. I ususally just hit it with a warm pressure washer best I can. I never put a degreaser on it because I figure I dont want to remove the base coat that is there, I just want to go over it best I can..... All depends how much time/effort you want to put into it.

 

[John M BUNMAN]

Tool Daily Dual-Function Undercarriage Cleaner,Surface Cleaner for Pressure Washer, 16 Inch, Underbody Car Wash Water Broom with 3 Pieces Extension Wand, 4000 PSI https://a.co/d/b7DHghh

 

[BarryT82]

I’ve used a pressure washer underneath and it’s a pain. I’d a good local car wash that has underbody spraying and try that first.

 

[JorgesRaptor]

I’ve used a pressure washer underneath and it’s a pain. I’d a good local car wash that has underbody spraying and try that first.

They also sell under vehicle pressure washer attachments that make it super easy

 

[Oldfart]

Go to a commercial spray and wash and use the hot water spray. You need the hot water. That's how the pro shops do it, a hot water pressure washer.

 

[lobsterman]

Tool Daily Dual-Function Undercarriage Cleaner,Surface Cleaner for Pressure Washer, 16 Inch, Underbody Car Wash Water Broom with 3 Pieces Extension Wand, 4000 PSI https://a.co/d/b7DHghh

I have the same thing and love it. Cheap and works well. Been using Fluid Film for several years and no complaints.