Concerned About Oil
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Sick 'n Tired
Joined: May 2006
Posts: 2,969
Likes: 47
From: League City, TX
Concerned About Oil
Forgive the newb Diesel question. My rig has 3700 miles on it and the factory oil. I thought I'd give the dip-stick a look and see if there was any oil consumption thus far. The oil seems to be really dark, as in black. It also smells a little like jet fuel. I've never seen oil that black when changing the oil on my F-150, it's usually got a little brown left. Also, that dipstick isn't exactly easy to read is it?
The pics below are of a clean stick and a dipped one.
The pics below are of a clean stick and a dipped one.
Thread Starter
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Sick 'n Tired
Joined: May 2006
Posts: 2,969
Likes: 47
From: League City, TX
Not always. As is the case with others I've ready about, my truck will start a regen when I'm about a mile from home. I'm thinking of getting an Edge Insight so I can see the soot levels and know when the process is active and complete.
Lead Driver
Joined: Feb 2005
Posts: 7,919
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From: The Great State of Texas
When my truck goes into regen I switch the LCD screen over to the instant fuel economy screen. When the instant fuel economy gauge goes back to normal I know the regen process is complete. Having watched this gauge many times I now know it takes ~ 6.5 miles for the regen process to be completed.
Because I know the number of miles to drive to complete a regen, and when the regen does occur when I'm near my destination; I look at my odometer and know I need to drive 6.5 miles to ensure my truck completes a regen before I shut the truck off.
Because I know the number of miles to drive to complete a regen, and when the regen does occur when I'm near my destination; I look at my odometer and know I need to drive 6.5 miles to ensure my truck completes a regen before I shut the truck off.
Thread Starter
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Sick 'n Tired
Joined: May 2006
Posts: 2,969
Likes: 47
From: League City, TX
When my truck goes into regen I switch the LCD screen over to the instant fuel economy screen. When the instant fuel economy gauge goes back to normal I know the regen process is complete. Having watched this gauge many times I now know it takes ~ 6.5 miles for the regen process to be completed.
Because I know the number of miles to drive to complete a regen, and when the regen does occur when I'm near my destination; I look at my odometer and know I need to drive 6.5 miles to ensure my truck completes a regen before I shut the truck off.
Because I know the number of miles to drive to complete a regen, and when the regen does occur when I'm near my destination; I look at my odometer and know I need to drive 6.5 miles to ensure my truck completes a regen before I shut the truck off.
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Lead Driver
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Yep, your fresh oil will be black shortly after changing it too once it cycles thru the engine.
Ford said 7% fuel dilution is max allowed diesel in the oil for the 6.7L and when to be concerned.
Normal driving with some towing, I end up with 2-3% dilution.
Last oil change I went out of my way as an experiment to complete active regenerations and the oil report was less than 0.5% dilution.
I guess with that dipstick it's difficult to tell how much over the max line the oil is vs the twisted metal.
Ford said 7% fuel dilution is max allowed diesel in the oil for the 6.7L and when to be concerned.
Normal driving with some towing, I end up with 2-3% dilution.
Last oil change I went out of my way as an experiment to complete active regenerations and the oil report was less than 0.5% dilution.
I guess with that dipstick it's difficult to tell how much over the max line the oil is vs the twisted metal.
Freshman User
Joined: Jun 2005
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May be true on newer engines with DEF, but my 2002 Duramax never had oil tht black, even when time for a oil change.
Senior User
Joined: Jul 2012
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Your '02 Duramax would have been the exception, not the norm. Every diesel I've owned over the last 30 years turns the oil pitch-black in a couple of thousand miles. Trucks, cars, tractors, construction equipment; they all exhibited this condition.
Lead Driver
Joined: Feb 2005
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From: The Great State of Texas
Including my '05 6.0 psd with 6k miles on the oil it wasn't that black. Less EGR equals cleaner oil.
Senior User
Joined: Apr 2010
Posts: 317
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From: Bismarck,ND
On every diesel ive owned,my brothers owned,my friends owned and every piece of equipment if owned and worked with as long as I have been alive has been black.And most of them had no egr systems.Yes egr and def make it worse but doesnt matter.All diesels oil should and will be black,you cant get away from it,and better yet theres nothing wrong with it other then the color,doesnt look like a gassers.
P.S.
Just because its black doesnt mean its not able to or isnt doing its job.
P.S.
Just because its black doesnt mean its not able to or isnt doing its job.
