And the old aluminum truck frames rotted out even worse. It's not about the metal or really the alloy but how the surface is protected using oxide conversion, b

And the old aluminum truck frames rotted out even worse. It's not about the metal or really the alloy but how the surface is protected using oxide conversion, better paint, and manufacturing methods which preserve these proactive measures (e.g. dont drill holes after oxide/paint applied.) The old '61 Mack truck I have is just plain sheet metal and has a lot of rust holes in the cab and body work. My 2001 Pathfinder had a failed strut tower in 2013 from the sheet metal rusting out (well known issue Nissan screwed people with.) Newer Chevy's and so on seem to hold up decently and I hope my '22 CR-V lasts 20 years.