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Open Roads Forum  >  Class C Motorhomes

 > v10 gas mileage

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Road Dog

Waukesha,WI

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Posted: 01/04/13 09:21am Link  |  Print  |  Notify Moderator

The Ford V-10 is 414.8 cubic inches. (6.8 x 61)

v10superduty

Canada-60 miles N of International Falls, MN

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Posted: 01/04/13 09:43am Link  |  Print  |  Notify Moderator

Judgerr wrote:

Looney2nz wrote:

Is there a way to get better gas mileage out of a 2002 Jaco Eagle 450 Ford V10? I presently get 8 mpg at 60-65 mph.


FYI
A V-10 is 6.8 Litres figures to about 407 Cubes!
No big deal but just thought you might like to know.


FYI
I think he was referencing as a Jayco (E)450, not motor size.

navegator

San Diego CA.

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Posted: 01/04/13 09:48am Link  |  Print  |  Notify Moderator

Slow down to 55 MPH and your gas milage will go up, what is the rush your destination will still be in the same location.

6.8 Liters = 414.8 Cubic inches or 1.768 gallons.

I have a "c" with a V-10 and pull a Suzuki Gran Vitara, I set the cruise control at 55 and get an average of 9 miles per gallon, and we climbe hills out here in the West.

Slow down and see the scenery

navegator

Rolin

Oregon

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Posted: 01/04/13 10:23am Link  |  Print  |  Notify Moderator

There are some V10 tuners that claim to increase fuel economy. Have never tried one. Since I travel light (smaller motorhome) an economy tune would be nice if it would work. Has anyone tried this????

http://www.truckcustomizers.com/products/bully-dog-triple-dog-gt-gauge-tuner-chevy-dodge-ford-gas.html

Jim Shoe

Amelia, OH

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Posted: 01/04/13 10:41am Link  |  Print  |  Notify Moderator

1. Always drive downhill. This isn't a practical solution, and once you get to Death Valley, you have to sell the RV and fly home.
2. Slow down to 55. This has the added benefit of not playing bumper tag with all the semis. They just pass you once and keep on going.
3. Travel on Interstates when possible. Even if its a little longer than a two lane highway, there's no stop lights. Save the secondary roads for your overnights and final destinations.


Retired and visiting as much of this beautiful country as I can.


Frosty's Mom

Treasure Valley, SW Idaho

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Posted: 01/04/13 12:17pm Link  |  Print  |  Notify Moderator

that is almost exactly what the DH gets. I've harped on lightening up on the gas peddle, but the man only knows one speed--usually pushing speed limits. he said he tried going easier once (not a full tank, i'm sure) and ended up with the same mileage, but we didn't buy it for the mileage.


wee3-gin, clyde & the bichon frise
2002 Forest River Windsong-34' Class A
1996 Geo Tracker-4WD
2003 Minnie Winnie 30V - "The Frosty Hauler"
May the Angels guide your wheels and ride on your shoulder.


rockhillmanor

On the Road

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Posted: 01/04/13 03:57pm Link  |  Print  |  Notify Moderator

Looney2nz wrote:

Is there a way to get better gas mileage out of a 2002 Jaco Eagle 450 Ford V10? I presently get 8 mpg at 60-65 mph.


Therein lies your problem! Drive 55 mph. It is the V-10 sweet spot. Took me months to figure that out. I now get 11 mpg.


"We must be willing to get rid of the life we've planned,
so as to have the life that is waiting for us".


pnichols

Santa Cruz Mountains

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Posted: 01/04/13 10:33pm Link  |  Print  |  Notify Moderator

Quote:

Is there a way to get better gas mileage out of a 2002 Jaco Eagle 450 Ford V10? I presently get 8 mpg at 60-65 mph.


Yes, there may be an inexpensive way to do this. Make all of it's gears "taller/higher". In other words overdrive all it's gearing just a bit more the next time you change tires by switching to tires that have a larger diameter (not wider width, however) than the usual 225/75R16 tires that come on them. Larger diameter tires enable the engine to spin less revolutions per mile in every gear. We have done this to our E450 V10 motorhome and to our 4X4 pickup for years.

Quote:

Therein lies your problem! Drive 55 mph. It is the V-10 sweet spot. Took me months to figure that out.


One of the things that any sweet spot for a V10's speed-versus-gas-mileage depends upon is how tall/high the overall gearing of it's drive system is. This is partially determined by 1) it's rear differential ratio - the E350 chassis V10 has a rear differential ratio different than that of an E450 V10, and 2) the diameter of the tires on it's chassis - regardless of the gearing ratios of other parts of it's drive system.

I've not yet determined any speed sweet spot for our E450 V10 motorhome. However, due to the larger diameter than stock tires on it the speedometer reads about 1.5 MPH slower than the vehicle is actually traveling. So if it's sweet spot used to be at a speedo reading of 55 MPH, it would now be at a speedo reading of 53.5 MPH.


Phil, 2005 E450 Itasca 324V Spirit

tpi

Southern CA.

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Posted: 01/05/13 10:19am Link  |  Print  |  Notify Moderator

5% gas rebate credit card good for equiv. of half mpg.
55 mph.
Go through it and weed out items you are not using.
Tire pressure.
Oil to spec. If it calls for 5W20 use it.
Highways/time of day that promote steady cruising, not stop and go.
Avoid headwinds if possible. Sometimes early morning hours are less windy.
Gasbuddy.com to help get good gas prices.





pnichols

Santa Cruz Mountains

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Posted: 01/05/13 10:44am Link  |  Print  |  Notify Moderator

Quote:

... 5% gas rebate credit card good for equiv. of half mpg ...


We use that trick too. Our trouble with that, though, is that we wind up spending the rebates for other things instead of more "free" gas!

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