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Old 12-13-2007, 02:39 PM
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Can this be right?

Aloha All,

I'm a newbie to this site and have taken delivery of an 08' F350 SupertyDuty CC LWB SRW 3.73 as 12/01/07. I just filled it up for the first time after my low fuel light went off 404.7 mi. on the OD. It said I had 46 miles to to go before Empty. I filled it up to the neck and it took 33.959 gallons! I thought this truck had only a 30.5 gal tank? Can the piping hold an extra 3.5 gal.? If the low fuel warning is correct, I should have had almost 5 gal left in the tank. The trip computer said I averaged 11.7 mpg on my first tank. How can this be? Can I trust the trip computer? I don't want to beat a dead horse but I hope my milage will improve .... Thanks in advance.

On another note, I would like to thank all the members here for all of their contributions on the 6.4 forums (I believe I've read all of them in the past couple of weeks... very time consuming) and they have been very helpful. Mahalo. (Thanks)

Last edited by BigIslandBoy; 12-13-2007 at 02:40 PM. Reason: grammar
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Old 12-13-2007, 02:44 PM
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I also forgot to add that it cost me $134 to her up at $3.799? And yes, diesel cost that much in Hawaii (Big Island). Ouch!!
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Old 12-13-2007, 03:11 PM
Is it even worth it???



 
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Welcome to Powerstroke.org

I can put at least 5 gallons more fuel in my truck after the automatic nozzle at the pump shuts off. The "full" level of these tanks not only leaves the plumbing empty, but also leaves some empty space in the tank to allow for possible expansion due to temperature changes.
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Old 12-13-2007, 03:11 PM
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Cool

Quote:
Originally Posted by BigIslandBoy View Post
I also forgot to add that it cost me $134 to her up at $3.799? And yes, diesel cost that much in Hawaii (Big Island). Ouch!!
Welcome!!!!

Best price here at ground zero (DC) is about 3.499 but I feel your pain.
I thought the long bed had a 38 gallon tank.
The first time I toped off mine the actual fuel down the tube didn't jive with the computer either, and didn't the next time so I ignore it now.

I now when MY light comes on I have about 50 miles at 65mph before I walk.
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Old 12-13-2007, 03:17 PM
Jon
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fuel

The rating that the manufacturer says is the safe level to allow expansion. In the winter you dont really need to worry about that but the summer can cause problems. Mine had a 29 gallon tank, did I put 33 in? No. Some people do I dont but thats your explanation as to why you can always get a bit more in.
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Old 12-13-2007, 03:32 PM
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fuel capacities

Long wheel base = 38 gallons
short wheel base = 30.5 gallons

that may explain why over 33 gallons went in.
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Old 12-13-2007, 09:12 PM
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Quote:
Originally Posted by champ198 View Post
Long wheel base = 38 gallons
short wheel base = 30.5 gallons

that may explain why over 33 gallons went in.
Thanks guys. I went and checked the sticker and it did say 38 gals. My bad... I guess if run it really low it would be $150 to fill up. that sucks.
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Old 12-13-2007, 10:51 PM
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Try filling up an ex. 44 gal tank
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Old 12-14-2007, 04:37 AM
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Yes unfortunately the price of diesel is ridiculous. Sounds like a sweet truck, hope you have many years of enjoyment with it.
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Old 01-08-2008, 08:14 AM
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dont trust you miles to empty. i ran out at 9 miles to empty. back when my truck was stock i was pissed still had paper plates. love my truck but miss my 04 dullie with 37s got better fuel millage!!!
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