Kenmore-D&M Dishwashers
Sears really deserved the FTC reprimand for the claims they were making in the mid 70s for those crummy DWs, they were diffidently stretching the the performance claims a little too much.
Yes D&M DWs could clean pretty well, heating the main wash and the final rinse to a guaranteed temperature with the main pump and motor running really helps cleaning. This same idea is what has made WP DWs work so well and is also why no Hobart built KA DW could ever consistently match the maximum cleaning that you could get with WP DWs.
But back to the KM D&M DWs, their big down fall was the lack of any type of filter, NO DW without a means to filter the circulating water has ever been one of the top performing DWs. And of course D&Ms biggest down fall was the horrible build quality, yes Sears took back thousands of KM D&M DWs but most were because of many serious and frequent problems with the machines rather than just bad performance.