Undercarriage protection?

[Area51BS]

I get under and wash mine. I use a citrus based cleaner like Griots or Simple green. Every oil change I use some of the old oil on a rag and lightly wipe down everywhere I can get. Still looks new under there. But I only have 19k miles at 39 months of owning it.

Sponsored

 

[andersman02]

I live in MN. Fluid film was my go to but did wool wax this time. I get it in 5gal pales and use an air gun to disperse. Do this for our work trucks also.

I like the wool wax a little more, it's slightly more watery it seems, easier to apply.

I've seen first half what salt does, I also try to minimize washing underneath during winter once I've undercoated, every wash takes a bit off