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GM EOS compatible with synthetic....

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Old Apr 22, 2012 | 07:28 PM
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Default GM EOS compatible with synthetic....
Hi....I'm getting the "oil change due" message on the DIC. Can I add GM Engine oil supplement to the synthetic fluid I'm running for a couple of hundred miles to clean up the combustion surfaces, or am I wasting my time/money?

TIA
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Old Apr 23, 2012 | 08:38 AM
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Originally Posted by LT1vette
......... am I wasting my time/money?
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Old Apr 23, 2012 | 09:55 AM
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Originally Posted by LT1vette
Hi....I'm getting the "oil change due" message on the DIC. Can I add GM Engine oil supplement to the synthetic fluid I'm running for a couple of hundred miles to clean up the combustion surfaces, or am I wasting my time/money?

TIA
GM OES goes in the oil for increasing the ZDDP amount...and that GM OES is a pretty well balanced formula that works with "synthetic" lubs as well.

OES doesn't act on combustion surfaces.

"oil change due" means...

Christian
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Old Apr 23, 2012 | 11:30 AM
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[
OES doesn't act on combustion surfaces.

"oil change due" means...

Christian[/QUOTE]

Yeah....I know what you mean. But, on my 70 LT1, I used to run it for 3-400 miles just before I changed the conventional oil. It (EOS) is a great additive for sure, I used it as assembly lube building engines.
I thought I would put the question out there to see what answers came.....I didn't know if there would be a problem adding it to synthetic oil....

Thanks for the input
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Old Apr 23, 2012 | 01:33 PM
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well the additional ZDDP will clog your cats. so that is something to consider.
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Old Apr 23, 2012 | 03:46 PM
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Originally Posted by baxsom
well the additional ZDDP will clog your cats. so that is something to consider.
Well, the additional ZDDP can multiply your engine life by a nice amount...

Christian
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Old Apr 23, 2012 | 03:49 PM
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Originally Posted by LT1vette
I didn't know if there would be a problem adding it to synthetic oil....

Thanks for the input
Originally Posted by miami993c297
and that GM OES is a pretty well balanced formula that works with "synthetic" lubs as well.
Christian
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Old Apr 23, 2012 | 11:27 PM
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Originally Posted by baxsom
well the additional ZDDP will clog your cats. so that is something to consider.

Never thought of that....But wouldn't that be,"if" the engine was burning oil...?
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Old Apr 24, 2012 | 02:45 AM
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well true but they all burn a little Id wager.
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