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Old 05-31-2019, 06:16 PM   #1
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1982 28' Airstream 280
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345 fuel tank

As I understand the 345 has a 80 gallon fuel tank. I happened to be under mine and took a tape measure to the tank. It measures 60" long x 28 1/4" wide x 14 1/4" high. If I subtract 3/4" for the flange on each end my calculator calls this 23,550 cubic inches which 100+ gallons. Am I doing something wrong or is this an oversize tank?
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Old 05-31-2019, 07:01 PM   #2
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Mine measures the same on the 325LE and the 370LE..... let me know how to put 100 gallons into it....I've filled them both up numerous times.....I think your data or calculator are wrong or broken.....Regards, Bob
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Old 05-31-2019, 07:55 PM   #3
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Well I have checked my numbers a couple of times but I didn't subtract for the radius on the corners. I would not have thought the corner radius would make up 20% of the volume but if yours is the same size I guess it must.

My gauge doesn't really work, it kind of bounced between 3/4 and 7/8 and I put 35 gallons in it. I have only fueled it twice and I wanted to run it down more to see what the gauge did if anything but didn't want to get too low. Knowing it is 80 gallons makes that easier. Thanks
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Old 05-31-2019, 10:15 PM   #4
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It's amazing, that at our age, driving a Class A motorhome .....pee stops are more important than pump stops

Can't do that in a gasser.

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Old 05-31-2019, 11:13 PM   #5
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I donít worry about it until the gauge stops wiggling....
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Old 06-01-2019, 12:53 AM   #6
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That's why I don't drink and drive Tony, too many pee stops.

Kreimer I used to think like that but I'm getting too old to push this damn thing.
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Old 06-01-2019, 05:07 AM   #7
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The dip tube does not go to the bottom of the tank so as to not
suck up all of the crud that collects down there. Perhaps that
accounts for the missing 20 gallons.
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