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Fuel in oil isnt common, and usually from washed cylinder walls from a cracked injector tip, or bad injector leaking fuel by into the cylinder when not running. Fuel would then leak by rings and into crankcase.
If you really suspect it, then you better send an oil sample out for analysis to verify.
This is informative, thank you. I just purchased a sample from blackstone. It should be on its way soon.
Somebody in the thread said that high pressure oil would overpower any high pressure fuel, but based on the slow accumulation of fuel in the oil, what you are saying about it happening when it is turned off, perhaps just after running, I think is valid.
To be honest, I'm not sure why I'm sending off an oil sample, at this point as long as this is just injector o-rings or cup o-rings or whatever it could possibly be. I want to just do everything anyways. On both Banks.
And then there is the whole diesel engine run away thing.....
That would be more common to happen with tubo seal blowing and oil going through sytem atomized better into all cylinders then a runaway from a single cylinder from leaking or over fueling, right?
This is informative, thank you. I just purchased a sample from blackstone. It should be on its way soon.
Somebody in the thread said that high pressure oil would overpower any high pressure fuel, but based on the slow accumulation of fuel in the oil, what you are saying about it happening when it is turned off, perhaps just after running, I think is valid.
To be honest, I'm not sure why I'm sending off an oil sample, at this point as long as this is just injector o-rings or cup o-rings or whatever it could possibly be. I want to just do everything anyways. On both Banks.
Generally, you shouldnt be able to get fuel in oil from external injector oringss, as oil has higher psi by a lot, and that the fuel area on the injector is below the oil area. I would think that you would have to have bad internal injector oring, or damaged plunger or barrel, to allow some minor fuel leak down when truck is off, this would typicaly lead to bad smoke on startup or hydrolock. A cracked/damaged injector nozzle could affect spray pattern and wash the walls during engine running.
Oil test is a good idea to verify if you have fuel mixed, or if there are any other issues that would show, before you spend a bunch of money
That would be more common to happen with tubo seal blowing and oil going through sytem atomized better into all cylinders then a runaway from a single cylinder from leaking or over fueling, right?
Yeah...but sometimes you have to go over the top to make a point.
I'm really thinking of the crankcase getting so overfull that the mixture finds its way into the cylinders.
Injector cups or external orings will not put fuel in oil.
It cannot be anything to do with the turbo. Nothing fue related touches the turbo, so it cant mix fuel into oil.
I highly doubt it can be anything catestrophic, that should be noticable in how it runs. Being you are seeing better mpg then I hve ever gotten in a 7.3, I feel it has to be operating fairly decently.
I am hoping the oil test comes back showing no issue
Apologies, I bought the test and sat on it for almost 3 months. After running the truck for a good 50 miles or so, I immediately came home and drained some oil from the oil pan for this test..
It appears that there is no water in there. I think if there was anything significant it would have been in the comments. I don't particularly know and understand how to read these results. I know there is a how-to guide. I might dive into that a little deeper later.
Was happy to see the comments.. thanks again for the great advice.
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