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Old 02-05-2013, 08:39 AM
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Awful fuel economy

So I just filled the truck up it holds 38 gallons. So far in two days I've traveled about 20 miles and used a 1/4 of a tank!!!!!! I don't know why it's so bad but I think there's somthing wrong. Here's a pic of the gauge..


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Old 02-05-2013, 08:56 AM
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I know this is a stupid question, you have any leaks?
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Old 02-05-2013, 10:03 AM
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No smell of fuel or any leaks. The last tank I put in have me about 390 miles. Now the miles to E counter goes down a mile about every 1/4 mile.
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Old 02-05-2013, 10:54 AM
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I hope not but is there fuel in the oil? I hope its something simple, like a bad fuel gauge.........
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Old 02-05-2013, 01:13 PM
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Sounds like your fuel sending unit isn't reading correctly. Mine has been all over the place for the last year or so. I just can't bring myself to pay for a new sending unit so I just track my mileage Maybe after this tax return I'll install a new gauge.
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Old 02-05-2013, 01:29 PM
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I do the same on my fuel gauge. when it hits half a tank i never know what I have till it hits 1/4.
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Old 02-05-2013, 01:42 PM
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Quote:
Originally Posted by Blue Goose View Post
I hope not but is there fuel in the oil? I hope its something simple, like a bad fuel gauge.........
I'm not sure how would I check ?

Also I just filled it from the 3/4 full and it took 10@$4.32/gal. Power service was also added

Last edited by 06Lariat_; 02-05-2013 at 01:48 PM.
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Old 02-05-2013, 02:03 PM
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Quote:
Originally Posted by 06Lariat_ View Post
I'm not sure how would I check ?

Also I just filled it from the 3/4 full and it took 10@$4.32/gal. Power service was also added

pull the dipstick and see if it smells like diesel, drain the oil in a clean pan and visually check and measure the amount, you should not get more than 15quarts. if the oil is clean you can put it back into the engine. if it smells like diesel on the dipstick dont go any farther, have it towed to wherever you have it repaired at. if enough diesel is in the oil it will ruin a turbo in as little as 4 miles of driving.



if i read that right, you put 10 gallons in to fill it up and only drove 20 miles??!!
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Old 02-05-2013, 03:09 PM
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Quote:
Originally Posted by Blue Goose View Post
pull the dipstick and see if it smells like diesel, drain the oil in a clean pan and visually check and measure the amount, you should not get more than 15quarts. if the oil is clean you can put it back into the engine. if it smells like diesel on the dipstick dont go any farther, have it towed to wherever you have it repaired at. if enough diesel is in the oil it will ruin a turbo in as little as 4 miles of driving.



if i read that right, you put 10 gallons in to fill it up and only drove 20 miles??!!
I filled it Sunday drove 20 miles used 1/4 tank then just filled back up today with 10 gal
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Old 02-05-2013, 03:30 PM
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Ok so I just checked the oil it smells normal and is still within the cross hatches on the dip stick. So I think my gauge or fuel sender could be bad. Btw how does fuel get in the oil?
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