jmattis@attglobal.net wrote:

> Agreed if you cook oil in a turbo and such it can thicken. Abuse was
> not the standard set by the cited article, however. In fact, it seems
> to set the stage for thinking that one can and probably should use a
> lightweight oil, because it will thicken with time anyway. That's not
> generally true, but the less informed might buy into it. I just think
> this article is "greenie" propaganda. (And I am not painting the
> poster, Jim Beam with that brush, it is an interesting article but I
> think there is a subtext to it.)

No - but the API Sequence tests are purposely designed to thicken
the oil. For most people the shearing down of VI improver is
probably going to be the bigger issue.