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Best oil used for a Graymarine 4-cylinder?

Printed From: CorrectCraftFan.com
Category: General Correct Craft Discussion
Forum Name: Common Questions
Forum Discription: Visit here first for common questions regarding your Correct Craft
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=34339
Printed Date: November-24-2024 at 3:32pm


Topic: Best oil used for a Graymarine 4-cylinder?
Posted By: crabman
Subject: Best oil used for a Graymarine 4-cylinder?
Date Posted: August-07-2014 at 12:53am
I know not another oil thread, but was wondering what most were using? Opinions wanted

I was thinking about going with BradPenn.

http://www.penngrade1.com/




Replies:
Posted By: 8122pbrainard
Date Posted: August-07-2014 at 4:22am
I run VR1 20=50 in all my engines.

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54 Atom

/diaries/details.asp?ID=2179" rel="nofollow - 77 Tique

64 X55 Dunphy

Keep it original, Pete
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Posted By: crabman
Date Posted: August-07-2014 at 11:13pm
I was really thinking I needed to run a little higher Zinc and Phosphorus levels then normal. Just out of curiosity have you ever sent your oil samples to blackstone?


Posted By: NCH20SKIER
Date Posted: August-07-2014 at 11:43pm
So I am not sure about the Gray Marine 4 but I run non detergent 30 weight in my 4 cyl Hercules (1956 Chris Craft). In my boat the engine oil also serves the transmission and anything with detergent or synthetic will do no favors to the transmission clutches.

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'05 206 Limited
'88 BFN


Posted By: crabman
Date Posted: August-07-2014 at 11:54pm
What brand do you use? I have a friend that has Caviler also, not a 100% sure of the year though, I believe it was in the 60's though. Bradpenn got back with me and need to call the rep back tomorrow about it.


Posted By: NCH20SKIER
Date Posted: August-08-2014 at 12:37am
I am not sure as my buddy that restores the oldies has a 50 gallon drum (think it is Napa) that filled up a 2 gallon can for me.

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'05 206 Limited
'88 BFN


Posted By: 8122pbrainard
Date Posted: August-08-2014 at 3:25am
Originally posted by NCH20SKIER NCH20SKIER wrote:

So I am not sure about the Gray Marine 4 but I run non detergent 30 weight in my 4 cyl Hercules (1956 Chris Craft). In my boat the engine oil also serves the transmission and anything with detergent or synthetic will do no favors to the transmission clutches.

A non detergent has NEVER been recommended. I and hundreds of my fellow ACBS members have no issues. They created detergent oil for a reason!!

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54 Atom

/diaries/details.asp?ID=2179" rel="nofollow - 77 Tique

64 X55 Dunphy

Keep it original, Pete
<


Posted By: Riley
Date Posted: August-08-2014 at 10:47am
Isn't it bad to change over to a detergent oil in an old engine that has always had non detergent?


Posted By: TRBenj
Date Posted: August-08-2014 at 11:39am
If it has sludge build up, I'd say so... The detergent might free it up and circulate it. If no sludge, no reason to stick with non-detergent.


Posted By: 8122pbrainard
Date Posted: August-08-2014 at 9:38pm
A 56 should have never been run on a non detergent.

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54 Atom

/diaries/details.asp?ID=2179" rel="nofollow - 77 Tique

64 X55 Dunphy

Keep it original, Pete
<



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