A Series Diesel Engine Lubricating System Flow 124
If the oil cooler element ruptures, the oil pressure will
force oil into the coolant system.
Oil in the coolant should be visible when the radiator
cap is removed.
Worn or damaged seal sin the turbocharger can also
allow oil to leak into the air crossover pipe and be
burned in the engine.
The condition can be verified by removing the air
crossover tube and looking for oil.
Inadequate sealing of the piston rings will result in oil
being blown out the breather tube and/or consumed by
the engine
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