What was GM Engine Oil Supplement (EOS) PN#1052367 replaced with?
What was GM Engine Oil Supplement (EOS) PN#1052367 replaced with? 
06-28-2007 | 10:47 PM
#2
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From: Shreveport,Louisiana
ENGINE OIL SUPPLEMENT BY GM
We used to use the stuff back in the 60's to help seat the rings and engine break-in after a rebuild. I was told by the service manager at a large Chevy dealer to put it in my 02 LS1 to quieten down the infamous GM piston slap.
We used to use the stuff back in the 60's to help seat the rings and engine break-in after a rebuild. I was told by the service manager at a large Chevy dealer to put it in my 02 LS1 to quieten down the infamous GM piston slap.
06-29-2007 | 07:41 AM
#4
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Originally Posted by See5
What makes you think it is discontinued?
I Use it all the time-
I Use it all the time-
06-29-2007 | 08:20 AM
#6
It's discontinued guys....no direct replacement part listed as of yet. 
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06-29-2007 | 08:32 PM
#9
The zinc wells must be drying up?
Actually they are taking the zinc out of the street oils because it is hard on cat converters which makes the loss of zinc laden EOS painful for those of us depend on it for break in and hard running security.
Actually they are taking the zinc out of the street oils because it is hard on cat converters which makes the loss of zinc laden EOS painful for those of us depend on it for break in and hard running security.
Last edited by See5; 06-29-2007 at 08:37 PM.
06-30-2007 | 08:41 AM
#11
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Originally Posted by OneQuickCoupe
I'm sure you know that Shell Rotella oil still has the correct additives for high performance application. At least that's what I heard. I haven't used it however.
D.J.
D.J.
Yupper this one for sure....
-Shell Rotella-T 15W40 API Specification CI-4 Plus
I am headed out right now to buy all the EOS I can find...
07-04-2007 | 11:21 AM
#14
Originally Posted by Bink
any updates???
Have been able to buy a couple dozen from on shelf supples.
STP blue seems to have lots of zinc as well.
Last edited by See5; 07-05-2007 at 08:57 PM.
07-06-2007 | 07:19 AM
#17
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Originally Posted by See5
Checked with several sources and it is definitely discontinued.
Have been able to buy a couple dozen from on shelf supples.
STP blue seems to have lots of zinc as well.
Have been able to buy a couple dozen from on shelf supples.
STP blue seems to have lots of zinc as well.
Just as an FYI...
STP Blue has 1704 ppm Zinc (Multi Purpose Oil Treatment)
STP Red has 2115 ppm Zinc (4 Cylinder Oil Treatment)
Several others listed here...
http://www.autoboardz.com/reference-...ict217144.html
07-08-2007 | 08:09 AM
#20
Originally Posted by LS17000RPM
You don't need EOS when you use an oil like Redline.
How much zinc is in Redline engine oil or are you just making a general observation?