[s-cars] oil change question

[Fred Munro]

Hi Lee;

My cars see temperatures of -40. I run Mobil1 10w30 year round in the UrS4.
Synthetic oil has better cold flow properties than dino oil, and IME 10W is
OK even at -40. Personally, I don't feel comfortable with 0W anything. As
oil is used, the polymer chains that unravel with temperature to increase
viscosity get mechanically chopped up, and the oil gradually trends down in
viscosity. I'd rather end up with 10 than with 0, although it never gets
that far - another good reason for oil changes. I change my oil and filter
every 8000km - it works for me, and everyone has their personal preferences
on this topic, which have been discussed ad infinitum on this list :o)

Fred Munro
'94 S4
----- Original Message -----
From: <lee at wheelman.com>
To: <quattro at audifans.com>; "S-Cars" <s-car-list at yahoogroups.com>
Sent: Monday, October 29, 2001 8:07 AM
Subject: [s-cars] oil change question


> Just a quick question about oil changes...I'm about to do two oil changes
> (one on each car)...and have a question about viscosity. I only use Mobil
> 1...
>
> On the V6, I won't be doing an oil change again until spring...on the
turbo,
> I'll probably be doing another oil change in February.
>
> I'm in Boston, and my cars occasionally see temps below 0 degrees over the
> course of the winter...
>
> Should I stick with 10-30 or should I go to a 5-30 or 0-30?
>
> Thanks!
>
> Lee
> '95.5 S6 avant
> '96 A6 quattro avant
>
>
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