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      07-20-2014, 08:25 PM   #1
Rupes
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Is an Oil Analysis Enough?

Lots of posts recently on bearing failures and or blown engines. I'm curious if anyone with a blown engine has been doing regular oil analysis without any real issue being detected. Or, contrarily, has anyone done oil analyses and noticed the wear levels increased before failure?

Trying to find a silver lining in all this mess. Seems to be a very sudden issue in most cases which is what makes it so scary.
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      07-20-2014, 08:52 PM   #2
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No, an oil analysis is not a 100% accurate predictor. It is only really useful for establishing trends and for understanding how a given oil and change interval works in relation to your driving style.

Blackstone themselves have even said that analyses are not always indicators of whether or not an engine is healthy. I've seen reports (of other cars) with persistent high particulate counts of things like iron and copper, and the motor keeps humming along for 200k+. There have also been analyses that looked like the oil was barely even used, and a bearing spun while the car was still under warranty.

So to answer your question, it is partially useful. You have to establish a trend; if you see a certain element starting to go up after a few changes, there *might* be something worth investigating. Sorry if that's not the answer you want to hear, but the best thing to do is just go straight to the source and inspect the bearings.
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      07-21-2014, 10:48 AM   #3
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Quote:
Originally Posted by Rupes View Post
Lots of posts recently on bearing failures and or blown engines. I'm curious if anyone with a blown engine has been doing regular oil analysis without any real issue being detected. Or, contrarily, has anyone done oil analyses and noticed the wear levels increased before failure?

Trying to find a silver lining in all this mess. Seems to be a very sudden issue in most cases which is what makes it so scary.
No, it's not 100% confirmation of anything, but it's much better than doing absolutely nothing, simple as that.
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