Interesting Oil Analysis (Blown Motor)

[insite]

yeah, this oil was 2.5yrs old, but the sample was just taken 2wks ago. possible, too, that this gave a lot of particulates a chance to settle & drop out of solution. levels may have been higher had i taken a sample shortly after failure. regardless, i will dissect this thing this summer.

Originally Posted by Jake Raby

More than likely the engine did break a rod bolt, or it snapped the crank, something happened quick. Pull a sample from it now and send it in.

The older M1 from around 2009 had more moly in it and zinc, thats why i thought this was a modern sample of Royal Purple, I didn't look at the date.

[Mike_Yi]

Originally Posted by insite

yeah, this oil was 2.5yrs old, but the sample was just taken 2wks ago. possible, too, that this gave a lot of particulates a chance to settle & drop out of solution. levels may have been higher had i taken a sample shortly after failure. regardless, i will dissect this thing this summer.

Would the metals have settled out of the oil in the last 2.5 years and therefore not shown up in the sample?

[insite]

Originally Posted by Mike_Yi

Would the metals have settled out of the oil in the last 2.5 years and therefore not shown up in the sample?

some would have, but we'd still expect to see elevated metals & other contaminants.

[Flavor 987S]

Insite:

FYI.

Blackstone claims 40 (forty) 2.5L Porsche engine samples in your data. And they throw out all data that's "really messed up from raced engines" so that data is not included in your universal averages.

They are now up to 85 (up from 80 in late 2010) Boxster 987S engines (3.2L) and 50 Turbo engines for the 993.

[insite]

Flav -

thanks; good info. this is certainly statistically significant.