GM EOS discontinued...now what for ZDDP?

[Daniel J. Stern]

I run a bunch of flat-tappet engines. Got a nasty surprise today trying to reorder GM EOS under P/N 1052367: The P/N has been discontinued and there is reportedly no replacement P/N.

Ummmm...now what? I need a replacement ZDDP additive. Don't want thickeners, seal-swellers, or anything else. Suggestions?

Thanks

 

[sw99]

SLOB?

 

[globey]

I agree...how about some SLOB? It's drying up, but it can still be found. I'm thinking about buying up what's left around me for others that may need it.

 

[Crashbox]

YIPE! What's this world coming to? No more EOS?

I'd better hold on to the two bottles of it that I bought several years back... Yeah, what to use as a replacement? Seems there was no equal to EOS for engine break-in, etc...

 

[cmhj]

While not the same, VSOT is still available thru Napa.

 

[elric]

Use Crane Cam Lube. See my VOA on it.
Steve

 

[Crashbox]

Hmmm... apparently AC Delco is (at least for now) still carrying the EOS under part number 10-106.

Man, I really hope they don't pull the plug on its manufacture 'cause it is virtually unbeatable for an engine break-in additive.

 

[Daniel J. Stern]

Quote:

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Use Crane Cam Lube. See my VOA on it.

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Caramba, those Zn and P numbers are stratospheric! Did you ask Blackstone to double-check their results? Looks as if some folks here were skeptical. If the numbers are correct, it seems 2oz of the stuff in a crankcase full of SM synthetic would probably be plenty.

Thanks for the pointer.

 

[Daniel J. Stern]

Quote:

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Hmmm... apparently AC Delco is (at least for now) still carrying the EOS under part number 10-106.

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Oh? That'd be good. Where are you finding it? Online somewhere?

 

[Crashbox]

Yes. I googled "EOS Supplement" or something like that and found at least one source on E-Bay, there are likely more.

 

[Crashbox]

Hmmm... twin threads, same subject title... they should be combined.