viscosity charts

[tomfiii]

Is there a chart that plots viscosity vs. temperature in SAE only. I'm wondering where the viscosity would be at a temperature at around 140 degrees.

 

[BMW Dom]

Viscosity of what?

 

[tomfiii]

Viscosity of what?

a multi grade oil.

 

[kschachn]

a multi grade oil.

Which one?

 

[tomfiii]

a 10w-40 and a 20w-50

 

[ZeeOSix]

a 10w-40 and a 20w-50

Which exact brand? ... you need the exact KV40 and KV100 viscosity numbers from the oil manufacturer's specs sheet to plug into the Widman viscosity vs temperature tool.

 

[kschachn]

Try this and report back:

https://www.widman.biz/English/Calculators/Graph.html

 

[tomfiii]

Those temps don't help and I would like answer in SAE viscosity

 

[kschachn]

You set whatever temperatures you want. Then you’ll have to find out what SAE grade that viscosity falls within. But to be clear, the grade designation is determined at a specific temperature.

 

[BMW Dom]

What are you attempting to find out?

 

[benjy]

years ago machinery lubrication had a chart showing how the same viscosity oils actual "thickness" in centistokes varied. in a nut shell REAL synthetics thinned a bit LESS at high temps, BUT they "thickened" a lot less at 40C aka 104F where the cold spec is given!! REAL synthetics are different!!

 

[tomfiii]

I need results in SAE not cSt as cSt means nothing to me.

 

[BMW Dom]

I need results in SAE not cSt as cSt means nothing to me.

What do you mean in "SAE"?

 

[short]

 

[tomfiii]

10- 20 -30 weight etc.

 

[BMW Dom]

I need results in SAE not cSt as cSt means nothing to me.

Then convert????

There are numerous charts online of conversions.

 

[PimTac]

There is a chart right here on BITOG.

 

[kschachn]

I need results in SAE not cSt as cSt means nothing to me.

I think you need to work a bit more on understanding the basics and then formulating a question that makes more sense.

 

[kschachn]

10- 20 -30 weight etc.

They aren’t weights.

 

[tomfiii]

They aren’t weights.

Oil has always been called 10 weight 30 eight and so on.