Drfination of terms ?

[Calvin]

Just curious about this.There seems to be several terms that are used interchangably.Just to make sure I have to ask...

Do these terms all mean the same thing or is there a difference ?

Multi Viscosity.
Multi Weight.
Multi Grade.

Sorry to ask such a dumb question but as I have read here some things that seemed obvious before no longer do...

Thanks...

 

[Ken2]

Same thing. I'd like to see the terms using "weight" and "grade" dropped. Weight should mean weight on a scale, and grade should mean quality ranking, not viscosity.

Check this chart for some info about what multi-viscosity oil means---it passes a cold viscosity spec and gets a "W" (meaning Winter) viscosity number, and it passes a hot (100°C) viscosity spec and gets the higher viscosity number.
http://www.chevron.com/prodserv/NewOronite/library/li_viscosity_motoroil.htm


Ken

[ March 26, 2003, 05:53 PM: Message edited by: Ken2 ]

 

[Calvin]

Thank You Ken2,

I realize that sounded crazy but on one of the oil Mfgs websites ( sorry cant remember witch one ) made it sound somewhat misleading.... But it seems to make sence that they are interchangable.I have to agree with you as to a more standardization of these terms however innocent they are.Again I do appreciate the help.