Hey, its not really suggested, but you could throw them in tub too. If washed and dried quickly and fully, you likely wouldn't give oxidation time for a foothold. Oil would remove the five minutes of progress it did make. EG, a raw metal automobile panel might be washed before painting.
Water alone isn't the enemy, it needs oxygen and some time too. A water supplies trace contaminants can vary this too I guess, but normally it's not the catastrophe you might guess. I've fully dunked both engines and cars that have lived another 25 years since, tin and post war both, an improvement over their former condition for sure.
