6.8 V10 E450 mpg on Ford

J&L Rivera wrote:

JNorton wrote:

rockhillmanor wrote:

wbwood wrote:
Our 2013 E450 V10 that is 32' long gets about 8mpg... not much difference if it's towing or not.

Boy I'd be checking out why your mpg is so low. That just doesn't seem right for the V10.

Hmmmm 8.2 MPG at 62 MPH average for my 31'.

Same here.

Same here again.

Bordercollie wrote:
Plan on 7-8 mpg when budgeting for a trip. Typical Class C's have a lot of aerodynamic drag and rolling resistance due to the overall weight. The drag builds up a lot as you go faster than 50mph. Tires should be inflated to proper pressures for your rig (not too soft). I have gotten as high as 9 mpg and as low as 7mpg depending on wind conditions, level terrain vs mountianous,and traffic conditions with slowing and accelerating.Cost of fuel in an RV is only a small part of the total cost of ownership and operation.

Agree with all but the last sentence. Fuel costs are one of the largest costs in RV ownership-possibly second only to depreciation. Depending on fuel prices typically $4000-$5000 per 10,000 miles. Or $40,000 to $50,000 per 100,000 miles. Maybe we'll catch a break on some of this if the fuel prices stay low.

JNorton wrote:

rockhillmanor wrote:

wbwood wrote:
Our 2013 E450 V10 that is 32' long gets about 8mpg... not much difference if it's towing or not.

Boy I'd be checking out why your mpg is so low. That just doesn't seem right for the V10.

Hmmmm 8.2 MPG at 62 MPH average for my 31'.

Same here.

rockhillmanor wrote:

wbwood wrote:
Our 2013 E450 V10 that is 32' long gets about 8mpg... not much difference if it's towing or not.

Boy I'd be checking out why your mpg is so low. That just doesn't seem right for the V10.

Hmmmm 8.2 MPG at 62 MPH average for my 31'.

Plan on 7-8 mpg when budgeting for a trip. Typical Class C's have a lot of aerodynamic drag and rolling resistance due to the overall weight. The drag builds up a lot as you go faster than 50mph. Tires should be inflated to proper pressures for your rig (not too soft). I have gotten as high as 9 mpg and as low as 7mpg depending on wind conditions, level terrain vs mountianous,and traffic conditions with slowing and accelerating.Cost of fuel in an RV is only a small part of the total cost of ownership and operation.

rockhillmanor wrote:
Boy I'd be checking out why your mpg is so low. That just doesn't seem right for the V10.

That sounds about right to me. I had an older 1998 30' C and I got around 8 in mountain driving, sometimes a little less. I could get around 9-9.5 in the flats. Pulling a toad dropped it about .5 mpg. His rig is probably right at GVWR, plus pulling a toad and it's very high profile. The lighter, lower profile rigs of course get better mpg.

wbwood wrote:
Our 2013 E450 V10 that is 32' long gets about 8mpg... not much difference if it's towing or not.

Boy I'd be checking out why your mpg is so low. That just doesn't seem right for the V10.

Our 2013 E450 V10 that is 32' long gets about 8mpg... not much difference if it's towing or not.

Driving circumstances are extremely influential with fuel economy. For example, our trips most often include a lot of highway driving across the Great Plains where fuel economy is better. Others travel less, often all mountain or high traffic driving so their numbers will be lower.

I should also mention that we consistently cruise the open road at 5mph over the posted speed limits which are often different when towing. But we do limit ourselves to 70mph.

For us with our aerodynamic 2007 E350-V10 rig with the current-day Torque-shift transmission shown here, "TRIP AVERAGES" have been fairly predictable at 9-9.5mpg when we take our Jeep Liberty along, and 10-11mpg when we leave it home. Fuel economy is nearly the same because when towing, once at our destinations, the rig stays put and the Jeep does the bad-mileage-condition driving.

A friend with a similar older C to mine (both 460's) who travels to a few of the same air shows as I do used to rib me about driving at 65 or 70 and wasting soooo much gas, he stuck to 55 religiously.

Then I pointed out that the difference was 0.5 mpg between his speed and mine. So on a 1,000 mile run to Florida (2k round-trip) that meant 235 gallons instead of 250 gallons, even at $4 / gal. a difference of $60 and 36.25 hours of driving time versus 30.75 hours, a savings of 5.5 hours of driving time.

My time worth more than $10.90 / hour.

He now runs right along with the rest of us.