The all-American V8 kicks out as much as 350 hp, but the V8 power isn't as mighty as it once was. These are the V6 motors ...

The G-Class’s original 2.3-liter engine has been rebuilt with new internals ... Overland in a particularly sorry state, filled with rust and covered in dirt and grime. It was completely stripped ...

That iron oxide is rust. Pure iron doesn’t oxidize as aggressively. Examine an old iron engine block and you’ll see a thin surface layer of rust but little penetration into the metal.