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Old 10-03-2012, 12:07 AM   #1
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45' fuel consumption??

Just morbid curiosity, the 500 hp 45 footers, are they a 4-5 mpg unit or do they do better? Spotted a Beaver 45' with a 505 Cat. Probably
Can't afford to feed and clothe the thing but it 's fun to think about. Anybody have a general estimate?

Thanks.
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Old 10-03-2012, 12:52 AM   #2
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I just bought one so I will let you know!
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Old 10-03-2012, 06:19 AM   #3
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5-to- 6.5 MPG is my guess
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Old 10-03-2012, 06:59 AM   #4
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Depends on the weight of your foot,6-8 mpg
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Old 10-03-2012, 07:13 AM   #5
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450 hp Cummins ISL ( not quite the 500 hp) 42 ft ( again not quite 45 ft) running 65 mph with a GVWR of 46,500 lbs. towing a Kia Soul ( 2800 lbs.) we get 7.8 - 8.1. The two biggest factors I've found are your speed and the wind direction.
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Old 10-03-2012, 07:18 AM   #6
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Ours is 43 ft at 44,000 towing a pickup with motor cycle in the bed grossing out at 51,000. And we get between 7-8 mpg driving at 62-64 mph. That is the determining factor. How fast you want to push it thru the wind.

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Old 10-03-2012, 07:43 AM   #7
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Quote:
Originally Posted by denochs View Post
Ours is 43 ft at 44,000 towing a pickup with motor cycle in the bed grossing out at 51,000. And we get between 7-8 mpg driving at 62-64 mph. That is the determining factor. How fast you want to push it thru the wind.

Dave
The last post is right on. Wind is a large determining factor in fuel usage. I have a scanguage D on my unit and I can see the affects of headwinds, tailwinds and speed. I adjust my speeds accordingly. Good luck. Seeya on the road.
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Old 10-03-2012, 07:48 AM   #8
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Thanks guys.
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Old 10-03-2012, 08:36 AM   #9
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On our new Tiffin RED I have found that not the speed but the RPM will dictate mileage. I have driven at 55 and gotton lower mileage than at 64 because of shifting points. Running with the "Economy" switch on is now automatic.
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Old 10-03-2012, 08:48 AM   #10
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the 500 hp 45 footers, are they a 4-5 mpg unit or do they do better?
45' 2002 Monaco Signature w/toad(46k total lbs) @ 60 mph = 7-8mpg.
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Old 10-04-2012, 08:26 PM   #11
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Thanks everybody. Calhyatt, can you tell me more about "scangauge D" ? Thanks.
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Old 10-05-2012, 07:33 AM   #12
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can you tell me more about "scangauge D" ? Thanks.
ScanGaugeD - Advanced J1939 & J1708 compatible Vehicle Monitor for Diesel Pusher Vehicles : Linear Logic
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Old 10-05-2012, 07:50 AM   #13
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We do fair on fuel, djbmsu hit it. We have found for ours if I keep it out of 5th gear we do OK. Also have ScandaugeD and have found out we get better fuel mileage not on cruise control. I still use it occasionally though. There are sooo many variables to the question it is hard to answer.
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Old 10-05-2012, 11:52 AM   #14
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Speed and a head wind will hurt mpg the most.
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