The blade assembly of my Oster blender has always gone into the dishwasher...so far it has probably been through 200 cycles and the grease didn't wash out.
I would suggest that prehaps the rattling is do to another problem.
Linda C

Lars:
Try to find a small amount of White Lithium Grease.

I buy it in a Cartridge form ; for my gun, in an Auto Parts Supply.
It is the size of a Caulking Cartridge.
Maybe they have small sizes.

The name is " Lubriplate # 930-2 ". It is a White All Purpose Grease, very good.

If you can't find it, I'll send you some
Lou

Like Linda, I put the blade assembly in the dishwasher with no resulting problems. Maybe something else is wrong.

Would it hurt to spray some Pam on it?

Lars:
Right!! The Shaft may be worn in the Bottom, causing rattling.
If it is the same as mine , you may be able to replace the
bottom part.

Google the brand name, get a Phone number for Customer Service,and ask them.

Did it rattle before it was washed ???
Lou

I am guessing you have the rubber gasket on the wrong side of the blade assembly.

Thanks, Lou - I'll look for that in the Auto Parts store. It did NOT rattle before going through the DW, and you can see where the grease is supposed to go on the underside of the blade mechanism and how it is now all dried up. It will be a simple fix once I get the grease, but I didn't know which grease to use or where to find it. I did think the auto store would be a good idea. I had a similar problems with DB's ice cream maker, but for that, all we had to do was open up the motor and move the grease back to where it was supposed to be. I guess in storage or shipping, the grease shifted, but once it was relubricated, it worked fine.

I might also be able to replace the bottom part, but depending on the cost, I would rather replace the blender.

I'll let you know if I can find the White Lithium Grease and how it works!

Thanks!!

Lars

Lars:
If you can't find it I'll send you.some, in a zip lock.

Whenever you open a Gear box, grease compartment, EG - DB.
Add a little Grease to rejuvenate the old.

Now I have to go and check my out my Blender.
Lou

Thanks again, Lou! I did find some Lithium Grease at Pep Boys, but it doesn't look white - it's more of a light golden color. Maybe that is as white as the grease gets. Anyway, it appears to have fixed the problem. I bought the grease in a tub, and so there is no need for a gun. First I cleaned out the old grease (which was black by now) and replaced it with the new grease. Then I reassembled the blender and let it run for a bit. When I took the jar off the blender and examined the bottom, I noticed that a bit of grease had balled up, and so I cleaned that off and ran it again. This time it rattled like before, and so I replaced the ball of grease and left it there. Now it works fine, but it looks a bit odd if you look at it from beneath.

However, on our way to Pep Boys, we went to a Target store not far from us in Ladera Heights (Culver City adjacent) because I wanted to get a Kitchenaid ice cream maker, after having read the ice cream maker thread! The price at Target was almost as good as Amazon's, and I wanted to have it right away, for use next week-end. While at Target, we looked for lithium grease (they didn't have any) but also happened to see some blenders while in the kitchen area. I found a Kitchenaid stick blender for $49 that I almost bought, but Kevin wanted to get a Black & Decker blender that was on sale for $23. We thought it was $31, but there was discount to $23 when we checked out. There were some other blenders that we were considering, but the B&D had the most wattage. How it stands up in the long run will be another matter. I wanted it mainly for making Margaritas and other drinks, and I'll use the old blender for sauces and marinades. I don't need a lot of power to make mayonnaise. BTW, the Target store in Ladera Heights is much much better than the one I reluctantly used to go to in Culver City. I actually like the Target in LH.

Lars

Lars:
Glad you found the Grease and got all the Problems solved.
It is a Light Gold color, they call it White.

I would keep it in mind for a replacement Part.
Do you have a Manual for your's.

Have an account with Graingers, they are hooked up with Parts of America.
I've gotten odd parts from them, for different items.

I'll try with my Blender Parts, to see what I can come up with, I will Let you know.
Lou

WAIT!!!! WHAT ARE YOU PEOPLE DOING? You cannot use automotive grease where it can come in contact with your foods. You absolutely cannot use automotive grease on your blender. Yeah it'll fix the blender butt blender grease leaches out into your food so it is 100% necessary to use a non toxic food grade grease. I see this is a discussion from 2009 but I hope at least all future readers can read this. These rules absolutely are applied in all food processing industries as well. You can buy food grade grease and this is what should be used. If nothing else I'd personally use some crisco grease temporarily and often as it'll probably melt out if it gets warm but it'll probably work till you get some better food stuff. Here's some food grade here for sell. I'm not a lubricating expert but I'm thinking an h1 food grade grease at least is what should be used. https://www.walmart.com/ip/Ultra-Lube-Food-Grade-Machinery-Grease/134326654?wmlspartner=wlpa&selectedSellerId=1122&adid=22222222228059734372&wmlspartner=wmtlabs&wl0=&wl1=g&wl2=m&wl3=165551467673&wl4=pla-273525709153&wl5=9023859&wl6=&wl7=&wl8=&wl9=pla&wl10=101593696&wl11=online&wl12=134326654&wl13=&veh=sem

Yeah Lars is alive and kicking but I'll admit I cringed at the thought of having automotive grease in contact with food.

Food grade grease (not bacon fat, LOL) is available.

For machine oil, I use food grade mineral oil.

dcarch

That's how I feel about Southeast Asian shrimp.

The grease never got into the food that I made, but I have a completely different blender by now. It does disturb me when a self righteous post shows up, however.

I use food grade mineral oil on my wooden utensils, or else carnauba wax, which I get at surf shops.

Interesting place to get carnauba, which I usually associate with cars. Whereas Sex Wax is paraffin based.

The better surf shops sell carnauba wax, but it usually has a small amount of coconut oil in it. It is also used on boats, and so it is very easy to find in Marina Del Rey.

It has been some time since this post but here I am. There are now YT videos, one by Plant Sugar explains it a bit. Amazon has food grade lubricant. It is not just brand that impacts this, putting in dishwasher, what you blend, how often and what ever. In a commercial setting we do not put the blade mechanism in the dishwasher and we lubricate the blades.

I never did get any food grade lubricant, but at least now I know that it exists.

I don't have the problem blender anymore, but I do have the Black & Decker blender that I bought 14 years ago. I store it in the garage and use it only for making hot sauce when I have chocolate Habanero chilies. I have a Vitamix blender in the kitchen and use that the rest of the time, although I more frequently use a stick blender.

Home use I have a Breville Hemisphere, also a stick blender on occassion. I have a bullet which I still use sometimes. All have held up well.