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Old 11-20-2014, 05:00 PM   #1
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Mileage

We are going to pickup our Jayco Melbourne next week and take in a 15 day trip. Just curious what kind of milage can we expect on the flats driving at 55 miles an hour if anyone still drives at 55 mph.
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Old 11-20-2014, 10:55 PM   #2
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Ford E450 V10 30 Foot about 8 MPG
Ford E350 V10 24 Foot about 10 MPG
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Old 11-21-2014, 07:23 AM   #3
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mpg

On the last trip we took, over two passes and 900 miles averaged 8.4 mpg going 58 mph on the flats towing.
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Old 11-21-2014, 09:35 AM   #4
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Thanks for the info. We are taking delivery on ours next week, we were hoping for about 32 mpg (in a dream).
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Old 11-21-2014, 09:37 AM   #5
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Thanks for the info. We are taking delivery on ours next week, we were hoping for about 32 mpg (in a dream).
Maybe with a 100 mph tail wind...
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Old 11-22-2014, 09:42 PM   #6
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The "happy Spot" on our unit is around 58 MPH, and we get between 9 and 10 MPG. Of course it depends on terrain, winds, etc. We get a bit better mileage and a bit more power when we can fill up with ethanol free fuel... wish they would get rid of the ethanol!
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Old 11-23-2014, 09:24 AM   #7
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wish they would get rid of the ethanol!
+1
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Old 11-23-2014, 11:09 AM   #8
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I tend to drive 58-60 mph. Our Greyhawk when loaded gets 8-9 mpg depending on wind direction and speed.
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Old 11-23-2014, 01:48 PM   #9
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still better than my old gulfstream with the 460 efi I got 6 without pulling anything and 4 pulling my boat
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Old 12-22-2014, 10:03 PM   #10
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2012 Greyhawk, 7-8 @ 55mph. Towing 4,100# toad. Mileage varies with wind conditions and terrain.
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Old 12-23-2014, 06:24 PM   #11
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I have a '99 Eagle 283G. I get 7.2 with a head wind and 8.6 with a tail wind. I don't tow anything.
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Old 01-25-2015, 05:47 PM   #12
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OK, I seem to have a bit of a problem. Our 2011 Greyhawk 31 FK gets about 6.5 to 7.0 mpg at 60 mph pulling a Nissan Frontier pickup. Why am I getting lower mileage than everyone else?
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Old 01-25-2015, 06:30 PM   #13
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OK, I seem to have a bit of a problem. Our 2011 Greyhawk 31 FK gets about 6.5 to 7.0 mpg at 60 mph pulling a Nissan Frontier pickup. Why am I getting lower mileage than everyone else?
We have the same MH, just a later year model, and we saw 8 and 9 mpg on my two measured runs last fall. But while we were running about the same speed, our FK was not towing anything. That's the only difference I see.

Have you ever checked your mileage not towing the Nissan?
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Old 01-25-2015, 06:34 PM   #14
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Melbourne milage

With out towing we get a low of 9mpg and a hi of 11 mpg. Our average is about 10.7mpg. We have not towed yet. We run at 55mph.
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Old 01-25-2015, 07:01 PM   #15
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When running without the toad we were driving at 65 to 70 mph. Now we run at 58-60 mph to save gas. Mileage was about 7 or so. So yes, the toad takes off a bit of the mpg but not a whole lot. It still seems low compared with everyone else.
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Old 01-25-2015, 07:26 PM   #16
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When running without the toad we were driving at 65 to 70 mph. Now we run at 58-60 mph to save gas. Mileage was about 7 or so. So yes, the toad takes off a bit of the mpg but not a whole lot. It still seems low compared with everyone else.
Are you writing down the miles and gallons and calculating the MPG over a period of several tanks of fuel or using a MPG gauge on the vehicle?
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Old 01-26-2015, 11:54 AM   #17
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I use the miles driven since the last Fillup divided by the gallons taken to fillup. I realize that this method has error related to whether the tank is filled to the same level each time and whether the service station lot is level or not. But I consistently get between 6.5 to 7.0 mpg. Perhaps the engine needs some type of adjustment.
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Old 01-27-2015, 12:07 AM   #18
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Bob, I don't think you are that far off. I'm getting 7-8, towing 4,100# and faithfully keeping my speed at 55 mph. On the higher end of that if the terrain is flat and I'm not facing a headwind, and on the low end if it's the opposite. I never noticed much difference between towing and not towing and I sometimes do not take a tow vehicle. But I do agree with the other comments that it's best to look at this over an extended period and not get worried about what one or two tanks may reveal. I do keep track of each tank (2012 Greyhawk 31SS) and mileage has varied from 6.96 to a high (one time only) of 9.33 with an average over that period of 7.87 (4,778 miles driven, 606.95 gallons pumped).
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