Quote:
Originally Posted by j.fro
On the outside chance that you can get 3-4 ounces of oil, you can send a sample to Blackstone Laboratories for an oil analysis. This will tell you exactly what's in your oil.
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Incorrect in the cases where debris is large enough to be seen with a naked eye. In this case a particulate analysis must be done, which is not the same as a standard UOA. This can only be done by Caterpillar as it is common place with heavy equipment.
Any debris that is great enough in size or quantity to be seen with the naked eye is a serious condition. I'd not operate that engine again until an invasive inspection is carried out, to include sump removal.
With the oil filter removed insert a clean finger into the center inlet of the oil filter housing. If you find debris on your finger when inspected under direct sunlight or flash photography you have permanently damaged main and rod bearings as the debris has passed through the oil filter (via the bypass) and has been fed directly to the main and rod bearings. If this has occurred seek assistance at the next level.