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Best grease to use in sealed ball joints? #5458193 06/20/20 01:02 AM
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Framer Offline OP
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I took out my bmw control arms to replace the bushings, and would like to add some grease to the ball joints. They are the sealed type but I can easily insert a grease needle next to the tapered shaft.
I'm thinking marine grease since it's less likely to leach out and be affected by water?

Re: Best grease to use in sealed ball joints? [Re: Framer] #5458232 06/20/20 06:06 AM
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eljefino Offline
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You want the same "soap" chemistry that's already in there-- mixing is bad. I'd use moly grease.

Re: Best grease to use in sealed ball joints? [Re: eljefino] #5458314 06/20/20 08:21 AM
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FabricGATOR Offline
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Yeah, mixing grease may have killed 88 people in year 2000...

Re: Best grease to use in sealed ball joints? [Re: eljefino] #5458342 06/20/20 08:53 AM
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Framer Offline OP
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Originally Posted by eljefino
You want the same "soap" chemistry that's already in there-- mixing is bad. I'd use moly grease.

I agree. But how do i determine what is in there already?

Re: Best grease to use in sealed ball joints? [Re: Framer] #5458350 06/20/20 09:03 AM
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Chris142 Online Content
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Originally Posted by Framer
Originally Posted by eljefino
You want the same "soap" chemistry that's already in there-- mixing is bad. I'd use moly grease.

I agree. But how do i determine what is in there already?

Ask the manufacturer


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Re: Best grease to use in sealed ball joints? [Re: Framer] #5458372 06/20/20 09:42 AM
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JohnG Offline
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I think I read that Aluminum base complex grease will mix with either lithium or moly base grease. Most marine greases are aluminum base, so you're on the right track. I have mixed the blue marine grease with other kinds in the past without issue.

Re: Best grease to use in sealed ball joints? [Re: Framer] #5458419 06/20/20 10:41 AM
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ripcord Offline
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I wouldn't use Aluminum base grease... it's not compatible with lithium soap grease which is still the most commonly used type. I think your best bet is a lithium complex type grease as it seems to be compatible with most other grease types.

Re: Best grease to use in sealed ball joints? [Re: FabricGATOR] #5458463 06/20/20 11:43 AM
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kschachn Offline
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Originally Posted by FabricGATOR
Yeah, mixing grease may have killed 88 people in year 2000...

Another goofy response from this... new user. Looks like that's your theme.


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Re: Best grease to use in sealed ball joints? [Re: Framer] #5458511 06/20/20 01:20 PM
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Framer Offline OP
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Bought a tube of Green Grease. Their marketing got me. Lol

Re: Best grease to use in sealed ball joints? [Re: Framer] #5458611 06/20/20 03:54 PM
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kschachn Offline
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Originally Posted by Framer
Bought a tube of Green Grease. Their marketing got me. Lol

Do you think that's the same type grease already in the joint?


1994 BMW 530i, 253K
1996 Honda Accord, 289K
1999 Toyota Sienna, 437K
2000 Toyota ECHO, 290K
Re: Best grease to use in sealed ball joints? [Re: kschachn] #5458891 06/21/20 01:56 AM
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Framer Offline OP
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I have no idea. But the green grease is water resistant and says it can be mixed with many other greases.

Re: Best grease to use in sealed ball joints? [Re: Framer] #5459564 06/22/20 04:14 AM
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Lubener Offline
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Originally Posted by Framer
I took out my bmw control arms to replace the bushings, and would like to add some grease to the ball joints. They are the sealed type but I can easily insert a grease needle next to the tapered shaft.
I'm thinking marine grease since it's less likely to leach out and be affected by water?

I would leave the joints alone and not poke a hole in the boots. You then will have a small hole which will eventually get bigger and you destroyed any protection against the elements. I have had creeky joints and lubing through the boot didn't do a thing. Fittings are always on the bottom and you can't get any grease to the bottom of the joint where it is needed.

Last edited by Lubener; 06/22/20 04:18 AM.

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