Question about KitchenAid K45SS Classic Stand Mixer

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How do I add oil to my kitchenaid stand mixer?

I recently moved and noticed that my mixer was packed lying on it's side and some oil leaked out. Should I be concerned and do I need to add oil? If so, how do I add oil?

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Re: how do I add oil to my kitchenaid stand mixer?

If the oil is black or dark green this is the transmission grease. There is plenty in the case don't worry. You may have a cracked transmission case or a bad gassket. I think the most likely thing is a loose screw or two. Take the trim band off, 1 screw. Then take the 4 screws that hold the cover on. You can now lift the top and take a look for the sourse of the leak

Posted on Jan 08, 2008

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When my 85 year old mother, who no longer does much cooking or baking, heard that my trusty KitchenAid stand mixer finally gave up the ghost after 25 years of great service, she sent me her KitchenAid...

The mixer normally has it's gearbox packed with (quite thick) grease. Over time it can heat up and become more fluid and leak out. I would guess that the amount of oil you saw would not be a problem to loose. If it were mine, I would use it and not worry. If you do feel you need to check, the grease is packed in the front of the head. You will need to remove the head, split it (you will need to remove the band and planetary) and then you can see the gears.

Jan 28, 2010 | KitchenAid K45SS Classic Stand Mixer

2 Answers

Moved our mixer to another packed on its side, not

Hi AQUACLAY. For starters, for your next move remember to tell your packers to pack the mixer upright...J
OK, to answer your main question, your KA mixer’s internal gears are factory packed with enough grease to last a 'lifetime', whatever that means? Depending on the age of your mixer, where it’s been stored and how long it's been idle and/or how heavily it’s been used; these factors all will eventually cause the grease’s base oil to separate from its additives, with the resultant oil seeping from openings beyond the gasket and generally following the path of least resistance down to the lowest point, i.e., the agitator shaft. Gravity can be very insidious. Of course, laying our mixer on its side offers a whole bunch of other exits points for the oil. With that much oil lost, you definitely want to replace the transmission gear grease at some point in the future.
The good news is that this can accomplished quite easily (OK, maybe with a little effort) by yourself if you are a DITY type person, and feel adventurous and your mixer is not under warranty. Before you start to disassemble your mixer, be sure you have the Parts List manual on hand. If you're lacking one, you can download a PDF version from the KA website at:
Click on Customer Care>Locate Manuals & Guides> Enter the 6 character model number, in your case use KSM50P (Your KSM5 mixer falls within this manual), and select the first file KSM50P.pdf (438.31 KB) listed under Parts List (4) and then check to verify this matches your mixer model.
Turn to pages 4 & 5, titled “Case, Gearing and Planetary Unit”, which provides and exploded view for the disassembly and reassembly of your mixer, along with all the parts. Besides replacement grease you might consider replacing the Transmission Case Gasket (Illus. No. 26) and “O”-ring (Illus. No. 53), too. I’d also check to make sure there is no oil residue lingering where the oil leaked when it was lying on its side during the move; particularly if it leaked out of a brush hole on the side of the mixer head. Oil and electricity don’t mix, so here’s the opportunity with your mixer apart to wipe down the path the oil took to ‘escape’.
Here are five potential vendors in no particular order:;;;; and (for grease). You should search for ‘food grade grease’ online (although I’ve seen automotive bearing grease used too – your call). Prices can vary widely between vendors, so do some comparison shopping.
Once apart you can check for any other unseemly wear and tear on the gears, etc. It can be messy but quite gratifying to diagnose and repair your mixer yourself.
Finally, here are some links to several excellent websites that detail the disassembling/reassembly of a KA Mixer. The mixers displayed in the links are different KA models, but the principles are the same.
Between these three websites and their excellent pictures and descriptions and your Parts List manual, you should now be able to completely disassemble and reassemble your mixer.
Good luck, I hope this helps. Howard, Burke, VA
If this solution has been helpful, please rate it, thanks! - hslincoln

Jan 09, 2010 | KitchenAid KSM5PS Heavy Duty Stand Mixer

1 Answer

My stand mixer was stored on its side and leaked oil.

Called the Kitchenaid toll free number and found a local authorized repair center. Not a fixya solution, but at least a solution.

Oct 01, 2009 | KitchenAid K5SS Heavy Duty Commercial...

1 Answer

Oil leakage during move KA KSM90BU

no, mixer is fine. clean with damp cloth and use it. The gears are lubricated with grease and the oil is a little residue from this. Alls well.

Sep 15, 2009 | KitchenAid K45SS Classic Stand Mixer

1 Answer

KitchenAid wobbles when mixing

The "wobbling" sounds like an issue of beater to bowl adjustment, which can come out of alignment naturally over time and with use of the machine.

If the flat beater is striking the bottom of your bowl, this may cause the locking mechanism to loosen and may cause the mixing head to "bounce" during use.

Your Use and Care Guide will cover the "beater to bowl adjustment," which you can do at home in a few minutes with a flathead screwdriver.

Also, leaking of oil in a stand mixer is not necessarily indicative of a large problem.

Kitchenaid stand mixers are overpacked with oil to last the lifetime of the motor. If the motor sits idle for some time (is not used), the oil may begin to drip from the gears and settle. Oil leakage may primarily be seen from around the beater shaft or planetary action.

A stand mixer can lose up to a 1/4 cup of oil before it needs to be serviced.

It is recommended to run the mixer on speed 10 for 2 minutes in order to redistribute oil back into the motor. In order to prevent future occurences, this is recommended to be done every 3 weeks if mixer is not being used.

Dec 24, 2008 | KitchenAid K45SS Classic Stand Mixer

1 Answer

KitchenAid 250 Watts; Classic: Leaking Oil

Found this,may be helpful.
Why do I see oil leaking from the beater shaft of my stand mixer?
Some KitchenAid® stand mixers that are not used very often or have been tipped may experience slight oil leakage from the shaft or hub attachment. To avoid the oil leakage, KitchenAid suggests that you run the mixer weekly for short periods of time. Generally, the mixer may lose approximately X cup of oil before repair is necessary. The oil used is FDA approved and is not harmful to consume, should any get into the food that you are preparing.

Dec 15, 2008 | KitchenAid K45SS Classic Stand Mixer

1 Answer

Oil leaked from housing

my ultra power ksm90gr 300 watt mixer leaked oil when in the upright position overnight. whats that all about?

Nov 10, 2008 | KitchenAid K5SS Heavy Duty Commercial...

1 Answer

Kitchenaid mixer leaking oil

Some of the oil has separated from the grease inside the transmission, the grease should be replaced. You don't need a total dismantle,. simply remove the top cover and the transmission housing. Remove as much old grease as you can, then replace it with grease from Kitchenaid Parts, or locate a Shell Oil distributor in your area, you want Shell Darina XL EP-2. The oil that came out of your unit probably won't be enough to do immediate damage, but because it's separating, it's becoming less effective. It'a messy job to remove it but will add years of life to your mixer. If you find this solution helpful, please rate it. Good luck. ricardok45

Sep 28, 2008 | KitchenAid K5SS Heavy Duty Commercial...

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