50hp. Nozzles on Stock Programming
#31
Registered User
Soot makes the oil black. It has to be related to blowby, the 6.7 has the same issue with oil when the EGR is operational. The piston crown isn't designed for circulation of the air like the 03-04 pistons. The timing and 3rd event "push" the soot into the oil for lack of a better term.. I am not 100% sure how it does it, all I know is that it does it.
The soot is causing the oil to go black, no doubt about it. The leftover oil in the block is enough to blacken the oil instantly. Soot molecules are sub-micron, they are very hard to filter out until the agglomerate. Modern diesel oils fight agglomeration, which is a double edged sword. The soot is harder to filter, but does less damage.
Make sense?
The soot is causing the oil to go black, no doubt about it. The leftover oil in the block is enough to blacken the oil instantly. Soot molecules are sub-micron, they are very hard to filter out until the agglomerate. Modern diesel oils fight agglomeration, which is a double edged sword. The soot is harder to filter, but does less damage.
Make sense?
#32
DTR's 'Wrench thrower...' And he aims for the gusto...
Join Date: Oct 2003
Location: Smith Valley, NV (sometimes Redwood City, CA)
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Soot makes the oil black. It has to be related to blowby, the 6.7 has the same issue with oil when the EGR is operational. The piston crown isn't designed for circulation of the air like the 03-04 pistons. The timing and 3rd event "push" the soot into the oil for lack of a better term.. I am not 100% sure how it does it, all I know is that it does it.
The soot is causing the oil to go black, no doubt about it. The leftover oil in the block is enough to blacken the oil instantly. Soot molecules are sub-micron, they are very hard to filter out until the agglomerate. Modern diesel oils fight agglomeration, which is a double edged sword. The soot is harder to filter, but does less damage.
Make sense?
The soot is causing the oil to go black, no doubt about it. The leftover oil in the block is enough to blacken the oil instantly. Soot molecules are sub-micron, they are very hard to filter out until the agglomerate. Modern diesel oils fight agglomeration, which is a double edged sword. The soot is harder to filter, but does less damage.
Make sense?
I still can't find a satisfactory answer to the black oil of the later engines. And I can't see how the oil can get black with very very low soot levels in the oil.
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