A liquid cleaner, Spray9 you may find at Home Depot is what I discovered by accident that get the crud off everything leaving a squeaky clean finish behind. I use it every day and it also kills up to 99.9% of viruses in only fifteen seconds but has no bad or strong aroma. It turned a 1960 FRIGIDAIRE Dishmobile from a dull dark green to a gorgeous true turquoise instantly. Almost scary to see the decades of neglectin a tobacco smoking environment streaking down in dark brown stripes as soon as the spray hit.the porcelain finish. I'm looking at the dishwasher. I wonder if it's one of their Thirty inch rarities????
The one I've seen is a thirty inch and has a similar tubular wash system as the Frigidaire dishwashers.of the same period.