6.0L Power Stroke Engine and DrivetrainDiscussion of the 6.0L Power Stroke diesel engine and drivetrain in the 2003-Up Super Duties and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 6.0L Power Stroke engine.
Did an oil change and a fuel filter chnge this weekend and noticed something wierd, something I haven't seen before. This was the 4th time I've changed fuel filters and upon draining the fuel/water (I still have seen no water come out) some chunks came out too. They looked like snot. Chunks. They felt like a thin, smooth wax.
I have read here about parrafin or some other wax as an additive. I hve also heard about fungus in diesel also but I run almost 40 gallons a week through the truck and find this unlikely.
Could this be wax? I have never seen it before, in either winter or summer.
I have no problems either, with fuel delivery, mileage, or the water-in-fuel light.
How did it make it through the frame-mounted filter? Doesn't fuel go through that filter before it gets to the water separator?
It could be microbial growth that started in the water separator.
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2003 F250 XLT CC Long Bed 4x4, 6.0 w/Auto
HeavyDriver
If you got some old fuel it could be a type of algea. I would put some fuel additive that is made to kill the algea to be safe. One time we got some bad fuel at Fort Eustis, Virginia and killed our whole fleet for a couple of weeks. In the Army, we did not have the additive, so we added a barnicle cleaner they used on boats and pumped the tank, that had a problem, through fuelers that have a very good filtering system. From what you descibed, if it is algae, it is minor but I would think where you got fuel that is different and maybe avoid that place.
Good Luck
TasMan
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2004/04 Engine,King Ranch,F-250,4x4,SWB,3.73 LS, Adjustable pedals,Reverse sensor,Moon roof,clearance lights, Power rear window,Heated seats,Bedliner, DPPI T-409 Turbo Back, AFE Pro-Guard7, C-Bet'r mirror, Fumoto drain valve, AIC, Extange Tonneu, Lund SS Interceptor, Siver Star Bulbs, Harpooned tank, SUV double wiring harness, Bright Box, Clifford RS 3.5 alarm, 3" Edge Plush Ride, Bilstein Shocks, Westin Sportsman CPS Grille Guard, XM Commander wired in with a PIE Adapter, Eagle 137 series rims and Bridgestone Revos 285/75-16, Husky Liner Mud Flaps.
I did get fuel from a different place the week before the filter change. More dirt on the filter too than ever before. Maybe this station is just bad news. They sell a fair amount of diesel though...
I also was wondering of it was an emulsion of water and fuel that gelled up, not unlike water in oil or vice versa from a blown head gasket.
As I said, I run 40 gallons through it a week and wouldn't expect to have time for fungus. Not to say I didn't pick up cooties from the stations pump/tank though.
On the 6.0 the water seperator is in the frame mounted filter (HCFM). Its the brass plug w/ a 6mm hex key slot in the side of the HFCM. Well protected, but kind of a pain to drain. [img]/ubbthreads/images/graemlins/tongue.gif[/img]
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Feb 03 6.0 Silver F-250 SD SC XLT long box, 6-spd 3.73ls, Fx4, Stock, Spray-in liner, Contico box.HARPOONED.
I know that. My question is whether the fuel goes through the separator first or the filter first. Even though the separator and the filter are both in the HFCM, there must be a sequence of events here. The answer is in Dan's 6L bible here , which shows that fuel goes through the water separator before the filter. So gunk in the separator makes sense; it probably just floated down from the tank.
You would think, though, that this stuff would be filtered out by the filter at the filling station. Apparently not.
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2003 F250 XLT CC Long Bed 4x4, 6.0 w/Auto
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You would think, though, that this stuff would be filtered out by the filter at the filling station. Apparently not.
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It might be, but a lot of these places don't change their filters very often. Some are so plugged up the fuel(?) hardly flows, and some flow so fast I seriously wonder if there's even a filter in there. Then you hear the stories of somebody getting several gallons of water @$2.50 per often enough. Bottom line is, like additive packages, we can't know for sure. Best argument for sticking with the big suppliers who are more likely to pay attention to such things(I hope), or at least try to get to know your primary source.
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'05 F-350 PSD 4x4 CC SB SRW Manual
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