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PostPosted: Wed Sep 15, 2010 5:12 pm 
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Location: Seattle, WA
Matt McGrain wrote:
steve remchak wrote:

every 7500 miles. :wink:


That's what I did on the M3. There was no way I was going 15k b/c the oil was pretty dark around that point.
You'll find that color of oil has *no* bearing on its lubricating properties nor age.

Pennzoil Platinum can be very dark in as little as a few hundred miles but it returns amazing UOAs regardless.

However with an s54 M3, I'd probably change it a lot earlier than 15k myself since those engines are hard on oil. 10w60! ;).

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Last edited by JamesShort on Wed Sep 15, 2010 5:13 pm, edited 1 time in total.

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PostPosted: Wed Sep 15, 2010 5:12 pm 
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I got a SUX2000!
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Location: In the garage, under a big old Mercedes
When doing it by hand (without a machine), sometimes people trick themselves into using a polishing compound that's more aggressive than it needs to be, hoping it will be "faster." That usually just makes things worse.

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