[s-cars] Oil Temperature

[Calvin Craig]

So does it make sense to go with thicker oil and have higher temps, since it
has a higher viscosity at those temps, or does it make sense to go with the
lower viscosity oil and have the lower temps?  Opinions?

--Calvin
  -----Original Message-----
  From: LL - NY [mailto:larrycleung at gmail.com]
  Sent: Sunday, May 30, 2010 6:57 AM
  To: Calvin Craig
  Cc: Scar
  Subject: Re: [s-cars] Oil Temperature


  Higher vis = higher temps

  Greater shear friction, so higher temps. Experienced it in my last car
with an actual oil temp gauge, an A2 GTi pretty consistently.


  On Fri, May 28, 2010 at 6:19 PM, Calvin Craig <calvinlc at earthlink.net>
wrote:

    I was tracking my car (B5 S4) yesterday at High Plains Raceway east of
    Denver and my oil temps were roasting at about 285-295.  The last time I
ran
    they were about 270-275.  The only changes were the weather - 10 to 15
    degrees warmer than last time, and my oil weight 10W40 vs. 10W30 - both
    times were Royal Purple, by the way.

    So in everybody's experience does higher viscosity = higher or lower
temp?

    Thanks.

    --Calvin

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