Re: Multiweight oil viscosity

[DANIELS@LMSBV2.TAMU.EDU (Lee Daniels, Texas A&M University)]

From: mburdick@unmc.edu (Mike Burdick)
>Isn't your plot backwards?  As drawn, it shows the multiweight having
>the viscosity of the 50wt at low temps and the 20wt at high temps.

Yes, I blew it -- right out the oil seal.  Here's another try at this -
the multiweight oil has viscosity A at low temp and B at high temp, but the 
viscosity at higher temp is *always* less than at low temp...
 
Plot follows:
    (Highly exaggerated, qualitative plot:)
          |     *
          |       *
          |         *
          |           *
          |             *
        V |               *
        I |                 * <--50-wt oil
        S |     A ~           *
        C |       *  ~          *
        O |         *   ~         *
        S |           *    ~        *
        I |             *     ~       *
        T |               *      ~      * 
        Y |                 *        ~     *
          |     20-wt oil-->  *      ^    ~  ~ B
          |                     *    |_20W-50 oil
          |                       *   
          |                         *
          |                           *
          |                             *
          |                               *
          |                                   *
          +-----------------------------------------
                      TEMPERATURE 

Lee M. Daniels   Laboratory for Molecular Structure and Bonding   Texas A&M 
daniels@lmsbvx.tamu.edu           (409) 845-3726         Fax (409) 845-9351