Hay and alfalfa from ranching in western region will do the same.
It what saved quite a bit of my 51 6400 cab from rust, though...especially when grease and oil gets involved into the mix.
Did have to patch a spot on the rear of the cab from a forgotten truck parts catalog left behind the seat inside years ago.
The original paint on the firewall was very fresh and shiny when degreased.
Funny that it was a parts catalog.

Last edited by Chip O; 05/10/2022 4:00 AM.

Chip

'Rusto-Mod'
'51 Chevy 3600 5 window | C4 Corvette front/rear suspension & drivetrain | everything else looks old and stock
'92 GMC Sonoma GT #15 of 806
'91 GMC Sonoma GT Extended cab 1 of 1
Trucks, Trucks.....and more Trucks