The only way to keep your swedish iron in good shape is to clean the undercarriage regularly. This is best done with a power wahser that emits warm or hot water. The point is to dilute and ultimately remove salt. I think Irv probably does this. Also i read an article in the philadelphia inquirer about him and his car. He has had a few fender benders over the years, who knows....he may have had minor rust repair at some point.

He managed to get the only aluminum bodied prototype 1800S Volvo ever produced.
;-)