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Old 07-11-2016, 08:32 PM   #1
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Spartan Chassis
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Miles Per Gallon

I was curious what people typically average when traveling on MPG with there diesel pusher, my last trip I was at 7.4 MPG over a 6 hour trip. This has been one of my better trips for mpg, I kept speed about 68.

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Old 07-11-2016, 08:36 PM   #2
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That's exactly what I get in the best conditions I've encountered so far.


Dan & Loretta, US Army Retired Aero Scout Pilot
2012 Fleetwood Providence 42P Class A/DP
Spartan Chassis, 8.9L Cummins 450HP
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Old 07-11-2016, 08:44 PM   #3
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Yep, about that too, averages about 7 with toad. Sometimes the RV gods are with us and we get better, then the winds shift.......

Bruce & Teresa
2000 Foretravel U320 4010
Cummins ISM 450hp
Allison HD4060R 6 Spd W/Retarder
Bruce & Teresa
2000 Foretravel
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Old 07-11-2016, 08:46 PM   #4
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Generally under normal conditions we are 7.8-8.5mpg.
That is towing a olds alero
2001 Monaco Windsor 40 PBD
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Old 07-11-2016, 08:50 PM   #5
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In 32,208 miles the coach has used 4067.1 gallons of diesel for an average of 7.92 MPG. This is in all types of driving conditions and nearly always towing the toad. It also includes some 289 hours of generator usage.
2013 Tiffin Phaeton 40QBH
2016 Chevrolet Equinox LTZ AWD V6
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Old 07-11-2016, 08:51 PM   #6
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We were towing a Honda Pilot during this trip.
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Old 07-12-2016, 06:44 AM   #7
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I have a CAT 3126E in a 2003 Damon Ultrasport and the average for 90,000 miles is 8.5 mpg. I generally drive between 65 and 70 mph. We tow a 2004 Buick LaSabre with a tow dolly.
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Old 07-12-2016, 06:45 AM   #8
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We normally drive US highways that pass through small towns and average 7.6 mpg pulling a Jeep Cherokee. I imagine we'd get slightly better on the interstate without all the stops and less up and down the hills.
Dennis and Katherine
2000 Monaco Dynasty
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Old 07-12-2016, 06:58 AM   #9
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15 Discovery

8.95 last trip. Opened up intake and removed full mud flap. Now 9.2. Pulling Accord. Will save thousands $ over next 50k miles.
Newer diesels get better MPG. Includes short idling and gen usage. Cant idle new diesels over 10 min saves fuel. Never in a rush, retired.
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Old 07-12-2016, 07:32 AM   #10
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After abou 8K Miles including a trip out through the four corners area I was surprised that my LBCU indicated 8.5. I reset it before this trip, about 700 miles so far, and it again is showing 8.5. Of course this does not account for generator time, I cruise between 60mph and 65mph, and tow a CRV.
I know the LBCU is t always accurate but still, I'm happy with that.
Paul, Kathy, and Tux a 4 month Mini Schnauzer
2014 Tiffin Phaeton 42 LH, 2013 Honda CRV
"When the time comes to look back, make sure you'll like what you see"
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Old 07-12-2016, 07:37 AM   #11
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We have a 8.3L 350 HP ISC, Windsor is heavy and always towing a Jeep Grand Cherokee. Average 8.1 mpg. Last year on a trip out west I tried to limit my speed to 65 mph, it didn't seem to make a difference.
Jim J
2002 Monaco Windsor 38 PKD
2005 Jeep Grand Cherokee w/5.7 Hemi
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Old 07-12-2016, 07:39 AM   #12
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Depending on weather and how fast I drive we usually average 8 to 8.5 mpg towing our VW Passat Diesel on a Demco dolly.

A heavy foot results in less mileage.
Retired FAA ATC, VFW, LEGION, NRA (Life Member)
2002 Journey D L 36, 2013 Demco KarKaddy III,
Toad 2012 VW Passat Diesel
Lost little Bitzy New kitty named Oreo.
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Old 07-12-2016, 07:39 AM   #13
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11.4 over 50k miles, with toad
The Turners 2014 Thor Palazzo DP 33.3 35' Bunkhouse
BlueOx, '14 Ford Fiesta, DishHD, KingTailgater2, WifiRanger
50k+miles, 200+ parks, 47 states&Canada provinces, since Aug'14
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Old 07-12-2016, 07:44 AM   #14
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Same-ish. I cruise about 70 with a S10Blazer in tow. 7.5 mpg at $2.30/gal = 31 cents per mile. 8 mpg = 29 cpm.

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