what syn oil to use?

[The Loves]

Hmmm. 20-50 dino in the 4kq with 256k on it and no smoke and uses less than
1/2 qt per 3k.
Then I get stooopid. I put Mobil 1 10-30 for older vehicles in my Urq (which
was just fine before at about 100k) and then I get oil leaks coming from
multiple places. Needless to say, now I'm back to 20-50 and all is fine.

----- Original Message -----
From: "InfernoCL" <infernocl at wi.rr.com>
To: "'Fred Munro'" <munrof at sympatico.ca>; "'Al S'" <zeus83858 at icehouse.net>;
"'quattro-list'" <quattro at audifans.com>
Sent: Sunday, March 09, 2003 11:35 AM
Subject: RE: what syn oil to use?


> 15w-50 is just a waste, them super heavy oils just rob power and decreases
> protection. Any synth oil today should offer enough protection for any
> engine including F1 engines. But its true old engines should stay away
from
> 0 weight, 10w-30 works fine though.
>
> Remember thick oils robs power, increase oil pressure and have more engine
> wear......
>
> -----Original Message-----
> From: quattro-admin at audifans.com [mailto:quattro-admin at audifans.com] On
> Behalf Of Fred Munro
> Sent: Sunday, March 09, 2003 10:53 AM
> To: Al S; quattro-list
> Subject: RE: what syn oil to use?
>
> The older engines are not designed for 0 weight oils. Use the oil weights
> your owners manual recommends for both syn and dino oils. For your car, it
> is probably 5W30 or 10W30 for winter and 10W30 or 15W50 for summer. I use
> Mobil 1 10W30 year round in my '94 S4.
>
> HTH
>
> Fred Munro
> '94 S4
>
>
> -----Original Message-----
> From: quattro-admin at audifans.com [mailto:quattro-admin at audifans.com]On
> Behalf Of Al S
> Sent: March 8, 2003 5:42 PM
> To: quattro-list
> Subject: what syn oil to use?
>
>
> I rebuilt my 1990 Audi 80 non-q 4 cyl engine. Now I want to use synthetic
> oil in it, but I am not sure what grade to run. Castrol  treats it as a 12
> yr old engine and recommends 30w with no syn listed. Mobil -1  doesn't
know
> either.
> My temps here run from 10-100f and I am thinking of using 0-40. Anyone
with
> a suggestion??
> Thanks.
>
> 1990 Audi 80 2.0L non-q
> Rathdrum, Id.
>
>
>