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Lucas Marine Grease Formula Change #4748115 05/04/18 10:29 PM
Joined: May 2018
Posts: 1
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racerdude321 Offline OP
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Joined: May 2018
Posts: 1
Hi All,
Great forum, I've lurked for awhile but just now joined up.
I've been using Lucas Marine grease as my go-to for years. I use it in everything from my Volvo boat outdrive, Craftsman riding lawn mower spindles, Dexter EZ-lube trailer wheel bearings, to my New Holland tractor backhoe pins, etc. I went to grab a new tube today and noticed that is was now an OBCS (Overbased Calcium Sulfonate) rather than the lithium-complex I've been used to using. I'm worried because the 4 ball wear and the timken load lb ratings have gone down. Will it be okay for the shock loads in the backhoe pins and boat outdrive anymore?

So should I use the new formula or should I look into a different grease? Or am I overthinking it? I'd really like to continue using just one grease for everything.

Current Tech Sheet:
https://lucasoil.com/pdf/TDS_Marine_Grease.pdf
Wayback showing the old Tech Sheet as of 2/2/18:
https://web.archive.org/web/20160413034512/http://lucasoil.com/pdf/TDS_Marine_Grease.pdf


Thank you.

Re: Lucas Marine Grease Formula Change [Re: racerdude321] #4748135 05/04/18 11:02 PM
Joined: Jun 2002
Posts: 20,358
MolaKule Offline
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Posts: 20,358
Nope, the OBCS/polymer greases are the big deal today.

Amsoil uses a similar formula.


The value of a scientific theory is its ability to prompt further study, not that it has any relation to the established facts of scientific reality.
Re: Lucas Marine Grease Formula Change [Re: racerdude321] #4748236 05/05/18 07:03 AM
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Posts: 664
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njohnson Offline
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In the case of the Timken load lb rating, higher is better. For the 4 ball wear number, lower is better. It means the wear scar being produced is lower. I think that is the way the numbers work. I could be wrong.

Re: Lucas Marine Grease Formula Change [Re: racerdude321] #4784986 06/12/18 03:27 PM
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Posts: 135
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monster1 Offline
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It's been this new calcium based formula for at least a few years now as that's the stuff I bought a few years ago when I replaced an axle with a damaged spindle.

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