E.O.S. Assembly Lubricant

[supersize]

GM EOS part number 1052367

 

[TallPaul]

Thanks for the new analysis. Last time it was tested was about 3 years ago: Old VOA of EOS. zinc and phos about the same. Some variation in the other parameters.

 

[daman]

That's some nice looking stuff.

 

[alanu]

Is this GM EOS??

 

[supersize]

Yes, GM E.O.S. Assembly Lubricant Part #1052367. The back of bottle says made in u.s.a.

 

[TallPaul]

What are the instructions on the back? Do you add the whole quart and then run it how many miles? Does it say to use with mineral oil only?

 

[supersize]

The instructions say to pour over crank & cam bearings, journals & cam lobes, lifters, pistons, rings, walls etc. Then a cover your a** statement "GM recommends eos assembly lubricant only for the specific purposes listed above. GM does not recommend the use of this or any product as an additive to engine oil"

 

[ebaker]

Also some of the GM engine rebuild literature says to fill the oil pump with EOS.

 

[daman]

How much of this stuff could you use as an add???

 

[boxcartommie22]

i add the whole 12oz. of torco mpz assembly lube to my oil change..its alot more robust then the eos.. i would add just 12oz. in my opinion.

 

[TallPaul]

I am running 2000 ppm zinc in my F150 right now. You can see the UOA at 5000 miles. Am taking it out to 9000 or so miles. Not that I recommend that much, but Redline runs about 1600 ppm zinc. Put enough to boost a few hundred ppm on SL and maybe 500 ppm boost on SM.