Some viewers might interpret this discussion in that manner, but in my view (my simple opinion), it is more appropriate to use modern, well-defined technical terms and nomenclature despite years of calling something by an archaic and incorrect name.This thread is a perfect example of people trying to impress other people with their knowledge of things that are really not all that important in the grand scheme of things .
"In 1687, Sir Isaac Newton, an English physicist and mathematician, defined the term “viscosity,” which centered on the belief that friction had
So the term "Viscosity" came about 150 years before "Weight."
The general public isn't as intelligent as BITOG members are. The term, viscosity, is mysterious while weight is simple to comprehend.
This is really quite neat… Check out that little Pegasus there…
One of the best advertising symbols ever in my opinion.
Your history is inaccurate and the text regarding Newton's discoveries and resulting laws was in the same document you quoted but you also elected to exclude Newton's discoveries, which is tantamount to suppressing and ignoring the evidence.From what I can tell Newton was not concerned with viscosity in terms of its ability to reduce friction between surfaces.
Application matters not. Viscosity is a definitive characteristic of all types of lubes (fluids) and even gasses and is one property that varies with temperature.Viscosity alone is wholly inadequate to universally describe a lubricant because of the extreme variability in application (a gear lube and a motor lube may have the same viscosity at a temperature but are used in wildly different local conditions
It's grade.So my question is this I know the W on the label is for winter like 5W30. I understand the 5 is a viscosity that behaves well in cold weather and when the oil gets hot the viscosity is at a 30 grade. So where does the term weight come from when it all has to do with viscosity?
It was sarcasmHow can that be?
The typical density of a 0W20 is 0.845 grams/cm^3, and the density of a typical 5W40 is 0.850 grams/cm^3
If they can tell you what SAE J300 is and what viscosity units they are in, then I'd give them a pass, lol.So my question is this I know the W on the label is for winter like 5W30. I understand the 5 is a viscosity that behaves well in cold weather and when the oil gets hot the viscosity is at a 30 grade. So where does the term weight come from when it all has to do with viscosity?
Not until he heard of CAFE.From what I can tell Newton was not concerned with viscosity in terms of its ability to reduce friction between surfaces.
Not until he heard of CAFE.
only on BITOG.A 5W-30 (some call it a "multi-weight", but it's technically a "multi-grade" oil) .... should be described as: "5 grade winter rating-30 grade KV100 rating". Think that will ever catch on?