[DML] An oil question (was) Re: oil discussion

["Harold McElraft" <hmcelraft@xxxxxxx>]

Check out this site - 
http://TheMotorOilSite.com

Your understanding is a common one and not quite accurate.

Harold McElraft - 3354

--- In dmcnews@xxxxxxxxxxxxxxx, "content22207" <brobertson@xxxx> 
wrote:
> 
> 
> Moreover, the oil itself is whatever weight precedes the "W". For
> example, 10Wxx oil is only 10 weight, that's all. Miracle additives
> are supposed to make the oil act like the heavier number that 
follows
> the "W" after it heats up. I don't trust them. Too often I've seen
> multi viscosity oil come out as two separate products during an oil
> change: thin watery stuff followed by thick gloppy stuff. I'm 
assuming
> that's the oil separating from its miracle additives. I've also
> encountered valve train noise in my AMC with multi viscosity oil.
> That's why I use straight 30 weight only (temperatures where I live
> rarely drop below freezing). Multi viscosity oil makes no sense for
> vehicles in Florida or California either.
> 
> Bill Robertson
> #5939
> 
> >--- In dmcnews@xxxxxxxxxxxxxxx, M5E <nitrousgarageworks@xxxx> 
wrote:
> > 
> > The simplest way to explain it is: Think of the W
> > rating in oil as "winter". How the oil flows at zero,
> > or sub-zero temperatures. As the oil is tested it's
> > assigned a "value" by the petoleum product
> > manufacturer's association. Generally the lower the
> > first W value, the faster it flows in cold temp.s But
> > realistically zero weight oil, is an EXTREMELY light
> > grade of oil, and won't survive long in use. It's
> > properties degrade quickly,








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