S4_Cinci (I S'edTFA)

Here is a link to an interesting article. Now, I am not saying to routinely blend oils, but this will tell you a lot about viscosity and it even includes a chart to determine the viscosity of a blend of two differnt basestocks - yes, I know: basestock blending doesn't = finished motor oil blending. It can be done, but what cannot be done is to calculate the final resultant viscosity fo the blend expressed in terms of xW-xx. That is all.<ul><li><a href="http://faq.f650.com/FAQs/Photos/EnginePhotos/Viscosity.pdf">Viscosity</a></li></ul>

FixedWing

<ul><li><a href="http://www.baseoils.shellglobalsolutions.com/calculations/blending_pop.asp">Viscosity Index Calculation page</a></li></ul>

S4_Cinci (I S'edTFA)

Interesting, very interesting. Thanks for the link!

FixedWing

:-)

Harvey Halabookie

Check out my thread posted above

S4_Cinci (I S'edTFA)

Got it, thanks!

Oo.et.oO

zero makes:

Microsoft VBScript runtime error '800a0005'

Invalid procedure call or argument: 'Log'

/calculations/blending_pop.asp, line 295


perhaps another proof that there is no such thing as 0 weight oil?

FixedWing

It does. You need to enter actual viscosities - not just "0W".

Oo.et.oO

i understand it's not an actual viscosity. that's where my mobil1 0w30 commentary comes from

FixedWing

Here are the specs for Mobil One 0W-30:

Viscosity, ASTM D 445
cSt @ 40ēC 56
cSt @ 100ēC 10.3

Try using those numbers. That is the viscosity. The 0W-30 is not the viscosity. It is the SAE weight rating.

Stephen<ul><li><a href="http://www.mobil.com/USA-English/Lubes/PDS/GLXXENPVLMOMobil1_0W-30.asp">Mobil 1 0W-30</a></li></ul>