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Old 04-03-2014, 07:02 AM   #1
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Fuel capacity

My owners manual says the Ford V10 chassis on my Allegro open road has a fuel capacity of 80 gallons. I don't think that's correct . I recently filled up the tank which registered 1/4. It took only 38 gallons to fill. Is it a 40 gallon tank?
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Old 04-03-2014, 09:16 AM   #2
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Hi and welcome!
The first thing to do is to look for a spec sheet inside a closet door. It should tell you the fuel capacity.
2004 Tiffin Allegro 27.5 ft. P32 18,000 lb. GVW. 8.1 liter. Workhorse chassis built May 2002. 35,500 miles. 2012 Jeep Liberty Toad. RVi2 brake unit.
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Old 04-03-2014, 10:33 AM   #3
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Welcome to IRV2! We're sure glad you joined the gang!

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Old 04-03-2014, 04:42 PM   #4
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Welcome. I have an 80 gallon tank also and it seems like it takes forever to get to the F on the gauge once I am done filling up.
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Old 04-03-2014, 04:45 PM   #5
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If it is a newer Ford F53 chassis it came from the factory with an 80 gallon fuel tank. The older F53's had 75 gallon fuel tanks. The only way it would be different is if the body builder changed it. The F53 does not have any fuel tank capacity options. Just one. If you PM me your chassis VIN I can even verify the factory fuel tank size. It is usually in the build data.
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Old 04-04-2014, 04:48 PM   #6
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Welcome and glad to meet you!

General questions are best asked in the appropriate forum because many of the experts there do not frequent the Mew Member Forum.
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Old 04-04-2014, 05:22 PM   #7
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Howdy from SC and welcome to the forums. In all likelihood it's an 80 gallon tank and your fuel gauge is out of adjustment like mine is.
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Old 04-04-2014, 08:23 PM   #8
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There is no adjustment for the fuel sending unit. In fact with a Ford chassis, if the sender is not reading as expected, it will trigger a trouble code in the PCM.
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