E46 M3 2004 engine issues

KJ Christopher · Post by **KJ Christopher** » Mon Apr 04, 2011 9:45 am

Kurt Ra wrote: Oil looked dirty and I can't imagine doubling that interval. Sent a sample to Blackstone to see how it looks.

Please report back.

Vincent Wong · Post by **Vincent Wong** » Mon Apr 04, 2011 11:28 am

I also don't trust the 15k (for the BMW) and the 10k (for the Audi) oil change intervals. I have been changing the oil every 5k miles. Even with only 5k miles, the oil looked dirty.

Mihail Milkov · Post by **Mihail Milkov** » Mon Apr 04, 2011 10:33 pm

Vincent Wong wrote:I also don't trust the 15k (for the BMW) and the 10k (for the Audi) oil change intervals. I have been changing the oil every 5k miles. Even with only 5k miles, the oil looked dirty.

After a few thousand miles oil starts to look darker. Based on what I have read, this by itself does not mean that its lubrication properties have degraded.

Kurt Rahn · Post by **Kurt Rahn** » Mon Apr 04, 2011 10:36 pm

Mihail Milkov wrote:
Vincent Wong wrote:I also don't trust the 15k (for the BMW) and the 10k (for the Audi) oil change intervals. I have been changing the oil every 5k miles. Even with only 5k miles, the oil looked dirty.
After a few thousand miles oil starts to look darker. Based on what I have read, this by itself does not mean that its lubrication properties have degraded.

That's why I send mine to Blackstone. Proof positive.

Kurt Rahn · Post by **Kurt Rahn** » Tue Apr 12, 2011 4:18 pm

KJ Christopher wrote:
Kurt Ra wrote: Oil looked dirty and I can't imagine doubling that interval. Sent a sample to Blackstone to see how it looks.
Please report back.

Here's the summary:

Blackstone wrote:KURT: This oil run lasted about 1,000 miles longer than the last, and as we'd expect iron increased with the
additional miles. A increase of 5 ppm isn't anything to worry about, and with all other metals reading around
averages and matching well with your first sample, we think this 1.6L is doing fine. Silicon improved to a
modest 5 ppm reading, showing that the air filter is working well. No fuel or coolant was present and the
viscosity read normally for 0W/40 this time. At 21,400 miles, we like the looks of this Mini. Try going 8,800
miles next time.

Full report is an attachment.

KJ Christopher · Post by **KJ Christopher** » Tue Apr 12, 2011 4:37 pm

Kurt Ra wrote:Here's the summary:

Thanks! Nice having actual data.

Kurt Rahn · Post by **Kurt Rahn** » Tue Apr 12, 2011 8:34 pm

KJ Christopher wrote:
Kurt Ra wrote:Here's the summary:
Thanks! Nice having actual data.

That's why I send it in every oil change ;)

Christos Adam · Post by **Christos Adam** » Wed Apr 13, 2011 2:37 pm

How much is it to send out a sample guys?

KJ Christopher · Post by **KJ Christopher** » Wed Apr 13, 2011 2:50 pm

Christos Adam wrote:How much is it to send out a sample guys?

http://www.blackstone-labs.com/standard-analysis.php" onclick="window.open(this.href);return false;

$25

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E46 M3 2004 engine issues

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