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Engine lubricants: How old is too old?

 
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timflan



Joined: 16 May 2006
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City/Region: Seattle
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PostPosted: Sun May 05, 2013 12:05 pm    Post subject: Engine lubricants: How old is too old? Reply with quote

I've got some fluids I would like to use for this spring's maintenance. The issue: I don't do my own maintenance every single year, so some of the lubricants I have on hand are 4 or 5 years old. Do they degrade? Can I still use them?

Here's what I'm intending to use:
Power trim/steering fluid
Gearcase lube oil
Grease

Thanks!

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Timothy R. R. Flanagan
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Captains Cat



Joined: 03 Nov 2003
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PostPosted: Sun May 05, 2013 12:09 pm    Post subject: Reply with quote

Try THIS LINK

Charlie

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CHARLIE and PENNY CBRAT #100
Captain's Cat II 2005 22 Cruiser
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Potomac River/Chesapeake Bay
K4KBA
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timflan



Joined: 16 May 2006
Posts: 546
City/Region: Seattle
State or Province: WA
C-Dory Year: 2005
C-Dory Model: 22 Cruiser
Vessel Name: Two Lucky Fish +1
Photos: Two Lucky Fish
PostPosted: Sun May 05, 2013 1:48 pm    Post subject: Reply with quote

Excellent...thanks! Looks like I'm OK this year, and I'll buy new next year.
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Levitation



Joined: 09 Aug 2009
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PostPosted: Sun May 05, 2013 7:59 pm    Post subject: Reply with quote

Ummm, these products started out a few hundred million years old.
Not sure that an extra year or two really means much.

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denny-o
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Captains Cat



Joined: 03 Nov 2003
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City/Region: Cod Creek>Potomac River>Chesapeake Bay
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PostPosted: Mon May 06, 2013 8:01 am    Post subject: Reply with quote

Ya, Denny but methinks the additives didn't come from the dinosaur age. That may be the age concern... Along with the OLM wanting to sell more "L". L=Lubricant! Wink

Charlie
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BrentB



Joined: 15 Jul 2006
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PostPosted: Mon May 06, 2013 9:28 am    Post subject: Reply with quote

Captains Cat wrote:
Try THIS LINK

Charlie


Thanks Commander

The article is very informative and well written by an engineer.

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Brent Barrett
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BrentB



Joined: 15 Jul 2006
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PostPosted: Mon May 06, 2013 5:12 pm    Post subject: Reply with quote

I goofed

I had no intention in demoting Charlie so excuse my ignorance and his rank of Captain has not changed

sorry Charlie
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Captains Cat



Joined: 03 Nov 2003
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City/Region: Cod Creek>Potomac River>Chesapeake Bay
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PostPosted: Mon May 06, 2013 9:30 pm    Post subject: Reply with quote

So, now I'm not only demoted, but I'm a TUNA too? Mr. Green

I are also an Engineer, Electrical tho and not Petroleum!

Thanks BugMan, you are more than forgiven!

Charlie Laughing
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BrentB



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PostPosted: Tue May 07, 2013 10:23 am    Post subject: Reply with quote

I like catsup with my crow Smile
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Captains Cat



Joined: 03 Nov 2003
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PostPosted: Tue May 07, 2013 11:04 am    Post subject: Reply with quote

You should try horseradish to go with all the horsesh__ we both dish up! Mr. Green
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BrentB



Joined: 15 Jul 2006
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PostPosted: Tue May 07, 2013 1:25 pm    Post subject: Reply with quote

that is correct

We can have a 9 course meal of BS
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