Last year when I pull the boat out of the water I noticed that there was some water in the oil oil had a shade of light brown I change the manifolds and the elbows did a couple of oil changes and a full tune and it was fine I took the oil filter off today I was going to change the oil before putting the boat in the water the oil look fine on the stick but the oil in the filter was green any ideas??
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Green oil
- Thread starter bannditt
- Start date
- Joined
- Apr 1, 2004
- RO Number
- 13137
- Messages
- 651
was there any emulsion in the oil (indication of water)? I've never heard of green - in any shade - motor oil.
I was hoping Sandy would chime in on this.
I was hoping Sandy would chime in on this.
Well,.... there is at least one actual green color synthetic motor oil and I suspect there are others.
https://www.ecstuning.com/b-liqui_m...MI943F6uDp6QIVYeW1Ch1lRwvGEAQYAiABEgI_JvD_BwE
But if the oil on the stick wasn't green when the stick was rolled on a clean cloth to paper towel it's hard to imagine what caused the green in the filter if that was changed previously with the oil each time.
Not that it means anything but I'm not aware of fungus forming in motor oil, just microbes in diesel fuel.
As Brad suggested above, my 1st thought was coolant contamination but apparently the oil on the stick looked normal after running,not milky this time. And , of course , it's a RWC engine, no coolant normally in it!
Just noting, whatever might cause that green tint would be concentrated as it is trapped and more visible in the filter.
Maybe just a little residual contamination from the previous problems , and it made its way to be trapped where it was found?
Have any copper fittings in a remote filter circuit?
Corroding copper oil cooler??
I imagine all of us would be interested in the results in the oil analysis report.
https://www.ecstuning.com/b-liqui_m...MI943F6uDp6QIVYeW1Ch1lRwvGEAQYAiABEgI_JvD_BwE
But if the oil on the stick wasn't green when the stick was rolled on a clean cloth to paper towel it's hard to imagine what caused the green in the filter if that was changed previously with the oil each time.
Not that it means anything but I'm not aware of fungus forming in motor oil, just microbes in diesel fuel.
As Brad suggested above, my 1st thought was coolant contamination but apparently the oil on the stick looked normal after running,not milky this time. And , of course , it's a RWC engine, no coolant normally in it!
Just noting, whatever might cause that green tint would be concentrated as it is trapped and more visible in the filter.
Maybe just a little residual contamination from the previous problems , and it made its way to be trapped where it was found?
Have any copper fittings in a remote filter circuit?
Corroding copper oil cooler??
I imagine all of us would be interested in the results in the oil analysis report.