Dark Green Oil.Please help!

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Jul 14, 2008 | 05:32 PM

FordF350Superduty

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Dark Green Oil.Please help!

Hi,guys.Today I was just chenged an oil on my( 2006,F350,6.0,30K) truck,and find that an oil was a dark green color.Did you know,guys,what can it be?Thanks for replay.

Jul 14, 2008 | 06:03 PM

scottman70

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I used to use a green semi-synthetc 15w-40 engine oil. I cannot remeber the brand though, I bought it from a fleet supplier. I wouldn't be concerned, just change the oil and add what's your preference of 15w-40 oil.......

Jul 14, 2008 | 06:27 PM

FordF350Superduty

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I use only Motorcraft SAE 15w-40 for my 6.0.And,when i change it before (I mean until 30.000) it never be dark green color,but always black.But today,when I drain old oil,the color was dark green,not black like always.And I don't know,is it OK or something wrong with my engine.Any idea?

Jul 14, 2008 | 07:02 PM

brickie

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From: AB/BC

Has it been in for an oil leak?The techs use dye to trace leaks,I think it turns the oil green until a florescent light hits it and it turns purple.

Jul 14, 2008 | 07:34 PM

FordF350Superduty

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A couple weeks before I leave my truck on a dealership,yes,the problem was an oil leaks.They resealed rear engine cover.Second problem was chek engine light.They replaced EGR valve.After 4 days they fixed all this problems.Now,no oil leaks.Truck run perfect.But,until I changed oil,and find some Dark Green Oil,I was jast worry and immediately go to dealership.They looked an oil (in the bottle) and say that I need to com to chek it.So,tomorrow,I'be there.

Jul 14, 2008 | 07:37 PM

FordF350Superduty

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But,I don't understand,why oil become Dark Green?

Jul 14, 2008 | 09:06 PM

FordF350Superduty

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OK,guys.I just cheked a statement,so BRICKIE was right,they use parts:gasket,seal asy - CRA and OIL DYE.Maybe that (oil dye) make an oil like Dark Green Color.I hope so.

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Jul 15, 2008 | 01:31 AM

cartmanea

Lead Driver

Joined: Jun 2007

Posts: 6,757

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From: Corvallis, OR

Sounds like UV dye. We don't have green coolant so its not that, but you'd probably have a bearing failure before now if it was. I've been drinking too...