RE: Mobil 1 0w30 report (long)

[David Eaton <david.eaton@computerland.co.nz>]

interesting this.  my ur-q gets it's oil temperature up to 130 without
*any* work at all. goes to 130 and stays there.  wringing it's neck gets
it hotter, but not by a lot.  water temperatures on a 25+ degree day
tooling around town will see the fan running about 50% of the time and
water temperatures above normal.  the 20v is better in this regard than
my old '85 ur-q which in the same conditions would see the fan running
most of the time, until the car got some air moving through the grill...

the rs2 otoh, never gets to 130.  never even close.  sits around 100-110
and never moves from there.  water termaeratures are lower on the rs2 as
well.  the only time i ever seen the water temps above 95 degrees was on
a recent 30 degree day, after negotiating 5kms of steep twisty mountain
track (1st gear), 2-up with camping gear and bike on top and with
air-con on.  guy with a 4wd at the top of the track was a little
surpsired to see an audi up there with him (put it down to a misplaced
early adult-hood with landrovers)...

dave
'95 rs2
'90 ur-q


>-----Original Message-----
>
>Date: Thu, 05 Feb 1998 08:00:11 GMT
>From: quk@isham-research.demon.co.uk (Phil Payne)
>Subject: Mobil 1 0w30 report (long)
>
>In message <199802050038.QAA03711@odf> luis@odf.UCSD.EDU (Luis Patino)
>writes:
>
>> With the previous oils (Amsoil 2000, Castrol Syntec) oil temps
>> used to stay to around 130 C while cruising at 80 MPH 
>> (130 km/h), and once got to 150 C while driving in the hot
>> desert near Las Vegas. However, with Mobil 1 0w30, the cruising
>> temp stays steady at one notch below 100 and even going uphill
>> at 90 MPH the oil temp stays at the 100 mark.
>
>130 degrees is about right for sustained cruisi
>ng.  100 is _way_ too low.
>
>As well as being below the design temperature, 100 is not enough to remove 
>some of the nasties that gradually blow/seep past the rings.  Such nasties 
>include even water, as a combustion product.  Getting the oil up to design 
>temperature helps evaporate these through the breather system.
>
>