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Old 07-22-2016, 09:31 AM   #51
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We finally made a 360 mile one way trip with the new dash and the fuel gauge is still way off. I think made Sam's Freightliner dealer might have the right idea of bending the senders arm. We gave up on the Seneca and traded it in on a Dynamax DX3, still Freightliner but different tanks and dash, drove 360 miles home and gauge seems ok.
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Old 07-24-2016, 08:17 PM   #52
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I looked at my tanks. They have stamped on the tank around the fill nozzle....
"Fill to no more than 40 US Gallons." on the right side and 34 on the left.

Then underneath that is states...
"95% Liquid Capacity"

So, the old question is, 95% of 74 gallons? Or is 74 gallons equal to 95% and thus the terminology "Fill to no more than 40 US Gallons"?

So worse case Math logic here is....
74 gallon x 95% x 6mpg = 422 miles
7mpg would equate to 492 miles

One question I have: Will the generator cut off at 25% tank capacity?
I had this on another Motorhome send had it happen to me but I haven't seen anything documenting that on the Seneca.
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Old 07-24-2016, 09:10 PM   #53
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We were told that the generator did have the fill hose higher up in the tank so it would not run the tank empty. We got 9mpg before we started towing a Yukon and 8.5 after. I surprised that you are only getting 6.
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Old 07-25-2016, 10:36 PM   #54
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I just ordered this BlueFire adapter that sends info to iPhone. I will report back on how well it works.
BlueFire for Trucks Home Page
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Old 08-11-2016, 09:34 PM   #55
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I have the same issue on my 2015 TS with 9000 miles. The most fuel I have got even with a low fuel warning was 43 or 46 gallons. Normal fills are about 38 gallons or less. I would like more. I had a class A that was capable of over 200 gallons even with 600HP it could still get 7-8-9-10 mpg, now that was serious range. I think I get about 8-10 now on flat land in the Seneca.
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Old 08-11-2016, 09:40 PM   #56
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Quote:
Originally Posted by Mr.Oz View Post
Decided to push it a bit. Went 550 miles yesterday before filling up. The last 80 with the low fuel light on solid. Took 59 gallons so 15 gallons left. 9mpg towing our Jeep.
Has anyone put a stick in the tank to measure the depth when the low fuel light comes on?
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Old 08-13-2016, 06:14 PM   #57
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Could it be that the fuel gauge has a built in safety margin for things like steep grades?

My understanging is that there is no sump in those tanks. Just a fitting somewhere close to the bottom. I was just thinking about that earlier this week while starting up some long 6-7% grades with 1/4 tank showing on the gauge.

If there was only a few gallons sloshing around in there wouldn't it suck air?
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Old 08-13-2016, 06:22 PM   #58
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Quote:
Originally Posted by AaronM View Post
Could it be that the fuel gauge has a built in safety margin for things like steep grades?

My understanging is that there is no sump in those tanks. Just a fitting somewhere close to the bottom. I was just thinking about that earlier this week while starting up some long 6-7% grades with 1/4 tank showing on the gauge.

If there was only a few gallons sloshing around in there wouldn't it suck air?
I think it's more a case of one fuel measuring system used on a whole bunch of different tank sizes and configurations.

Sent from my Nexus 6 using Tapatalk
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Old 08-15-2016, 08:51 AM   #59
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BlueFire questions

Quote:
Originally Posted by TNortham View Post
I just ordered this BlueFire adapter that sends info to iPhone. I will report back on how well it works.
BlueFire for Trucks Home Page
I assume you have a Freightliner M-2 Seneca and you would be buying the 9-pin Blue-Fire plug. Is that correct?
Have you had yours long enough to see results?
How are you using the info?
thanks
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Old 08-15-2016, 09:17 AM   #60
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Testing new extensions

I have run 2 trips with these no problems and it adds about 40 litres to a fill up
Attached Thumbnails
IMG_20160721_173742013.jpg   IMG_20160721_174833920.jpg  
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