<VV> y'all

[BobHelt at aol.com]

In a message dated 6/28/05 5:45:08 AM US Mountain Standard Time, 
HallGrenn at aol.com writes:

> The problem is that shearing and other wear factors "cut up" the long chain 
> 
> polymers and you didn't keep the higher viscosity as time went on.  

I have heard this too, but then why does the API have an operating spec that 
limits the viscosity INCREASE over use? Apparently the multigrade oils get 
thicker and not thinner over use.
Regards,
Bob Helt