Re: Mobil 1 0w30 report (long)

["Avi Meron" <avi@cosmoslink.net>]

100C is a bit too cold, it will not evaporate moisture and you will be
''making oil", 240 to 280F is a bit better temp. it is actually BETTER to
run a bit hot than too cold (rule of thumb only), most of today oils
(synthetic or not) can handle oil at higher  temp.
Avi


-----Original Message-----: Luis <luis@odf.UCSD.EDU>
To: quattro@coimbra.ans.net <quattro@m000bra.ans.net>
Date: Wednesday, February 04, 1998 6:02 PM
Subject: Mobil 1 0w30 report (long)


>
>Hi qlisters!
>
>After running Mobil 1 0w30 motor oil in my 85 4ksq for a week I
>have been impressed by a significant reduction of oil temps,
>a smoother running engine, and a suddenly quiet vacuum pump.
>
>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. The weather is not
>influencing the readings since it is warmer now than when the
>car still had the previous oils and the oil temps were just as
>hot then. In fact, after running those oils for 6 mos. their
>burnt color and weird mucus-like consistency panicked me into
>changing them. It makes me wonder that their supposed high-temp
>protection is worthless since they make the engine run so much
>hotter. Also, doesn't the cooler temp from the new Mobil 1
>come from reduced friction which means reduced engine wear?
>
>It certainly would appear so from the much smoother running
>of the motor even right after startup. I get no more clicking
>lifters either. The motor now feels and sounds like new.
>
>Above all, my vacuum pump is now quiet. With the old oils, any
>revving of the engine would start the loud TAP TAP, especially
>as they became burnt from the higher temps. Now, with the new
>Mobil 1, high revs and hard runs do nothing to the vacuum pump.
>
>Not because I have any interest in that company, but because
>their product seems to have fixed a number of annoyances with
>my car am I posting this here. I would like to hear other
>listers' experiences with and opinions about this oil, and after
>enough time I will report also on any changes in the oil
>consumption. Because these problems are very common in
>quattros I think that this new oil can help a lot of us.
>
>HTH,
>
>Luis Patino - '85 4ksq 142k mi
>