Compression Ignition Addict
Join Date: Sep 2012
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Your injector orings can start to wear, high pressure oil will be forced into your fuel rail. The oil will than feed back into the fuel tank from the return line from your engine. Than the oil than jus went into the tank and mixed with fuel will than be pumped back to the motor and you will be running oily fuel- making your filter black.
Pull your filter and look at fuel in bottom of fuel bowl, is it clear or dirty(from oil)
Another thing to do is stuck a 3/8" or 1/2" hose in your tank and suck some fuel out, does it look dark? If so injector orings.
Another thing could be Turbo could be passing oil but that's seems like a lot of oil for turbo.
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1995 F-250 7.3 Powerstroke 5 Speed, 6'' Lift. DIY Intake/Napa filter, 4" exhaust.