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RE: Oil Change Intervals


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?