I plan on spraying the underside of my truck with this stuff: https://www.cosmolinedirect.com/cosmoline-rp-342-heavy-spray-military-grade-rust-preventive/
Kind of a waxy oil/grease.
Still plan to keep my truck out of the salty roads if I can help it.

Last edited by High Plains; 11/09/2022 7:48 PM.

1961 Chevy C40 Flatbed 261