A little color in the oil

[fruitcakesa]

On the M6040, I changed out the trans filters and fluid, front axles and front diff fluids and noticed that the oil that came out of the axle gear cases had a fine, film of brass/gold throughout it.
No chunks but a definite color.
I am guessing some internal brass parts wearing?
Should I be concerned?
Under 1100 hrs

 

[JerryMT]

On the M6040, I changed out the trans filters and fluid, front axles and front diff fluids and noticed that the oil that came out of the axle gear cases had a fine, film of brass/gold throughout it.
No chunks but a definite color.
I am guessing some internal brass parts wearing?
Should I be concerned?
Under 1100 hrs

Is this the first change of gear oil? if so, I wouldn't worry about a 'fine film". Those parts have to wear in somewhat.

 

[fruitcakesa]

With 600 hr intervals this could be the second change; but I bought it used and don't know the service history.

 

[russell.still.5]

My guess would be that the front differential got over looked at service time or they added some oil that didn’t mix with the UDT factory fill.


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