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Lucas Marine Grease Formula Change #4748115
05/04/18 10:29 PM
05/04/18 10:29 PM
Joined: May 2018
Posts: 1
USA
racerdude321 Offline OP
racerdude321  Offline OP

Joined: May 2018
Posts: 1
USA
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
05/04/18 11:02 PM
Joined: Jun 2002
Posts: 20,235
Iowegia - USA
MolaKule Offline
Global Moderator
MolaKule  Offline
Global Moderator

Joined: Jun 2002
Posts: 20,235
Iowegia - USA
Nope, the OBCS/polymer greases are the big deal today.

Amsoil uses a similar formula.


"Science is a body of knowledge, a 'recipe', as it were, for reality. The totality of science is a collection of hard-earned nuggets, using math as a language of expression." Chip Cohen
Re: Lucas Marine Grease Formula Change [Re: racerdude321] #4748236
05/05/18 07:03 AM
05/05/18 07:03 AM
Joined: May 2007
Posts: 654
Indiana
njohnson Offline
njohnson  Offline

Joined: May 2007
Posts: 654
Indiana
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
06/12/18 03:27 PM
Joined: Jan 2010
Posts: 132
ca
monster1 Offline
monster1  Offline

Joined: Jan 2010
Posts: 132
ca
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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