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Re: Oil Change Intervals
Regarding the recent discourse on oil changes...
My last car was an 1986 16V Scirocco. Early on, I ran the car on 20W50 Castrol
GTX. By about 60K miles I was noting a steady increase in oil consumption. I
spoke to a few VW owners who said that VWs "eat" castrol. I then switched to
Mobil 1 and my consumption dropped to a neglible amount.
Have any fellow Audi owners had similar problems with Castrol?
I recently read from the list that someone had stated that there is more blow-
by at cold start with the synthetics than with regular oil.
Does this give better "cold start" protection?
Inquiring (new to Audi) minds want to know....
1990 Coupe Q
Subject: RE: Oil Change Intervals
Date: 9/8/94 10:13 AM
My average change interval is/was 7K miles. I only changed the filter when I
changed the oil. I know it's better to change more frequently, but at 1K miles
a week, it's just too much to do. My thinking was that since Mobil-1 costs
twice as much, I'd leave it in twice as long. If I had the time, I'd change the
oil more often. I really can't say that I caused any damage from my scheme,
but I do think changing the oil more often is goodness.
>I assume you change the oil filter every 3k/3mo? I was told that you could
>get 10K on synthetic if you changed the filter and added oil every 3-3.5mo.
>So, would you say it would be good practice to dump all the oil on every
>other filter change if the interval is 3-3.5 mos?