I am not clear about how more oil capacity would bring down the oil
temperature.  It would make it warm up a little more slowly, but not
change the final temp very much.  The only effect I can think of would
be that a larger filter would have a larger outside surface area and
would radiate heat and transfer it to the surrounding air a little
better.  I doubt that this would make enough difference that would be
detected easily.
   Data from actual measurements or other logical arguments are welcome.

Larry A.

On Fri, Nov 5, 2010 at 3:45 PM, neil n <musomuso@gmail.com> wrote:
> Hi all.
>
> Am considering using a larger capacity oil filter on my Jetta swap.
> Presumably this might help keep oil temps down. (please correct me if
> I'm wrong on my presumption!) Jake D commented in another thread that
> his wifes Jetta is running one. It is a later MY then my engine. So...
>
> For the ABA (1994) 2.0 would the oil filter from an AAZ 1.9 be the
> correct one for this application?
>
> Pretty sure it would, just need confirmation.
>
> Neil.
>
> --
> Neil Nicholson '81 VanaJetta 2.0 "Jaco"
>
> http://tubaneil.googlepages.com/
>
> http://groups.google.com/group/vanagons-with-vw-inline-4-cylinder-gas-engines
>