Wow......
you guys and gals are really into your mixers. I have the one on the right in Post# 267317, I believe. Bought it at Macy's to match the finish on the modern toaster I already had from Macy's. I thought it was called Industrial something or other....or maybe I want it to be called that...lol.
Got the better motor, but it's probably not their very best. I don't need anything better, really. I grew up watching a 'big white' model work with all its accessories. I know nothing about them other than I never saw one fail in any kind of spectacular way...unlike the hand held mixers often do.
I recently got out my grandmother's Proctor Silex juicer from the 50's and squeezed up some key lime juice and some orange juice. Haven't used it in over 35 yrs. I took the motor apart when I was a boy, but decided I could do nothing for it to improve it...lol.
In this day & age of modern lubricants and tailor made synthetic greases...if Kitchenaid is using a grease that separates out from lack of routine use, shame on them.
Kevin