[Vwdiesel] about that oil - again

[LBaird119 at aol.com]

> I just wanted to be sure, in: 15W-30, the 15 is the viscosity when cold,
>  right?  So, to turn over an engine when it's super cold out, it would be
>  better to run an oil something like 5W-30.  Is this right?

 Right.  The lower number is supposed to be the viscosity of that weight of
oil.
The latter number is supposed to be equivalent to THAT viscosity of oil when
hot.  I don't know what temp they rate it at cold and hot.  Of course I use
"supposed" because things rarely are what they're supposed to be.  ;-)
  I've run 15W-40 forever and I've not seen cold enough weather for it to
do fine.  Rarely gets below -20F here anymore.  Hasn't even been below
zero for a couple of years!
     Loren