[Fot] [FOT] Forwarded message regarding oil

[Hugh Barber]

Charly Mitchel wrote:
> Isn't there something we can add to our oil to make it more compatible to
> our motors? 

Charly,

 From the linked web page http://www.lnengineering.com/oil.html :

> *How can I boost the level of Zn and P?*
>
> One way would be to use GM's Engine Oil Supplememental additive. By 
> our calculations, between .5 and .66 oz of GM EOS has to be added to 
> each quart of oil to raise the Zn and P by 100 ppm each. But be 
> careful, more is not always better. Too much and it will cause damage 
> to your catalytic convertor and possibly other emissions controls. 
> Although not as concentrated, STP 4-cyl Treatment (in the red bottle), 
> is easy to find and inexpensive, and doesn't have the viscosity 
> improvers (thickeners) of the blue bottled STP.
>
> For a Porsche 911, I recommend using 1 bottle (pint) of GM EOS with 
> every oil change if the oil you are using has less than the 
> recommended 1200-1400 ppm (0.12-0.14%) Zn and P. If the oil you want 
> to use has less than 1000 ppm (0.10%) Zn and P, choose a different 
> oil, since you will need to add too much of the GM EOS to boost this.
>
> For a four cylinder Porsche, 1 bottle of STP 4-cyl treatment is the 
> perfect amount for boosting the Zn and P in a ~4 quart fill. 
> Alternatively, about 1/3-1/2 of the bottle of EOS will be more than 
> enough.