Terrible fuel mileage - Ford Powerstroke Diesel Forum
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post #1 of 3 Old 01-29-2008, 11:24 AM Thread Starter
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Terrible fuel mileage

Ok.....so the past couple of months my fuel mileage has gotten a lot worst. I have not done any modifications since or right before the problem occurred. I was running bio-diesel that i was making in my shop. My buddy made up a batch and I ran it and he ran it in his 03 duramax. Thereafter my water in fuel light started coming on but doesnt stay on. It will light up for a few minutes then cut off for five or so then keep repeating. I changed my fuel filter and it had some crud in the bottom of the bowl. Is this the problem or is it something else? I think im gonna have to remove my fuel tank and get it out but i aint sure if water in the fuel would make my fuel mileage go to crap!!! Any suggestions??????????

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post #2 of 3 Old 01-29-2008, 06:34 PM
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mine is terrible too it's this G@$%& # winter fuel

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post #3 of 3 Old 01-29-2008, 06:38 PM
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I dont know bout the bio, but winter blend diesel sucks..Maybe need alittle bit more of something in the mix of the bio?

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