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Old 09-28-2012, 12:12 AM   #15
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I am finishing up my second long trip since buying my 2008 31C Winnebago Outlook on the E450 chassis. I have driven 7,771 miles. My overall average is 7.3 mpg. My best was 8.8 and worst 6.5. I seldom exceed 65 mph and routinely set cruise control at 63 mph. I do not tow anything and run about 200#s under max weight. I make sure my tires are inflated at 75 and 80#s at all times. My unit is bone stock with no mods to engine.
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Old 09-29-2012, 12:00 AM   #16
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Fuel economy.

Quote:
Originally Posted by Mr_D View Post
Mr_D thank you for the link.
I have to admit that the graph on page 35 surprised me and is totally off the chart.
If there is any logic to that, than someone who has a fuel economy of 3.5 mpg at 20K should expect 6 mpg at 140K - this is ABSURD!
So my V10 itasca gave me 7.8 gpm @27K and if I drive it to 140K I will be getting around 15 gpm!
That would be FANTASTIC - but would never happend!

Yesterday at work I hooked up my laptop to one of the units equipped with Cummins ISL 8,9L engine:

All TRIPS
ECM DISTANCE 239858.4 miles
Engine average load 29.00 pecent
Fuel used 66250.0 gal
TRIP CINCE LAST RESET
Average fuel economy 3.61 gpm
Idle fuel used 549.0 gal
Drive fuel used 59983.9 gal
Drive fuel economy 3.997 gal

I think that this is pretty much self explanatory.
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Old 09-30-2012, 04:49 PM   #17
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On what page is the 140,000 mile requirement for calculating fuel economy state?
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Old 09-30-2012, 05:14 PM   #18
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I figured out our fuel economy from our return trip home from Vermont. We have a 2008 Itasca Navion diesel. We averaged 16 1/2 miles per gallon. I was very pleased considering that is better than my Ford truck!!
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Old 09-30-2012, 08:48 PM   #19
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Quote:
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I figured out our fuel economy from our return trip home from Vermont. We have a 2008 Itasca Navion diesel. We averaged 16 1/2 miles per gallon. I was very pleased considering that is better than my Ford truck!!
Is that engine 5 or 6 cylinder and what was your average speed.? Thanks in advance for your reply.
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Old 10-01-2012, 03:07 AM   #20
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Is that engine 5 or 6 cylinder and what was your average speed.? Thanks in advance for your reply.
I can't definitively say what we averaged as far as our speed goes because I didn't plot it. We certainly never went over 60 mph. My rig is a six cylinder, so that's a big help. But I attribute the good fuel mileage to it being a diesel.
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Old 10-01-2012, 06:13 AM   #21
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I have a 1995 Chevy class C mh 23' with a 454 engine. I completed my first trip in it and calculated the gas mileage at 8.8 mpg US. This seems low. What is everyone else getting? I believe the Vortec engine came out in 1996 which had better mileage.
Hi Chateausport,
With my 2011 32 foot Itasca Cambria 30C with a V10 towing at the 5k limit I average 8.5 mpg at 60 to 65 mph. If I try 65 to 75 that average drops to 7mpg. Speed will kill your mileage.
Todd
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Old 10-15-2012, 08:38 AM   #22
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93 ford 460 27' Jayco drove 272 miles
at 60 mph got 10.3 mpg
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Old 10-15-2012, 09:50 AM   #23
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800 mile trip towing Corolla with 32 foot Fleetwood, averaged 7.3 mpg at 60 to 65 mph. I-5 worst highway ever and SoCal gas kills the wallet.
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Old 10-15-2012, 09:58 AM   #24
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ford c-class being aerodynamic as a barn, anything over 7 mpg you should be happy
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Old 11-02-2012, 09:32 AM   #25
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ford c-class being aerodynamic as a barn, anything over 7 mpg you should be happy
Copy that !!
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Old 11-03-2012, 09:01 AM   #26
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ford c-class being aerodynamic as a barn, anything over 7 mpg you should be happy

Owned the Ford v10 7 MPG was the norm, in the wind with a trailer 4.5 to 5 was the norm

As reported earlier the general experience of Sprinter based class C diesel is they will get double the MPG of the Ford chassis............I drive with traffic 65-75 ( not 55-60) pull an enclosed 6x12 trailer (4000 lbs) and average 13.8 over the last 18,000 miles. With out the trailer will average 14.5 to 15. In the high head wind with the trailer never less than 11.2 .
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Old 11-03-2012, 11:59 AM   #27
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Fuel economy - apples vs oranges.

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Owned the Ford v10 7 MPG was the norm, in the wind with a trailer 4.5 to 5 was the norm

As reported earlier the general experience of Sprinter based class C diesel is they will get double the MPG of the Ford chassis............I drive with traffic 65-75 ( not 55-60) pull an enclosed 6x12 trailer (4000 lbs) and average 13.8 over the last 18,000 miles. With out the trailer will average 14.5 to 15. In the high head wind with the trailer never less than 11.2 .

2008 Winnebago Sprinter View 24H-J 2001 Itasca Spirit 29N
Length -24'5'' 29'4''
Exterior width - 7'6'' 8'4''
- // - height - 10'9'' 11'2''
GVWR - 11.030 lbs 14.050 lbs
Diesel 3L engine Gas 6.8L engine
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Old 11-04-2012, 08:21 AM   #28
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Quote:
Originally Posted by G.T.

2008 Winnebago Sprinter View 24H-J 2001 Itasca Spirit 29N
Length -24'5'' 29'4''
Exterior width - 7'6'' 8'4''
- // - height - 10'9'' 11'2''
GVWR - 11.030 lbs 14.050 lbs
Diesel 3L engine Gas 6.8L engine
Maybe apples and pears .................I am at a about 15000 lbs and 39' long. The 3 liter handles the load just fine even in the mountains with double MPG?

If and when I want more interior space I will not be returning to the big class C.........."small" class A diesel and hope for 10 to 12 mpg.
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