I am looking to get better gas milage out of this thing. I am getting about 6-7 mpg now. Would a chip make it burn less fuel or more?
I drive slow too and its not much better if any. :thumbsdn:
2006 Duramax Diesel Fun Mover 34c
Started by djtroy, Jul 30 2007 07:20 PM
19 replies to this topic
Posted 30 July 2007 - 07:20 PM
I am looking to get better gas milage out of this thing. I am getting about 6-7 mpg now. Would a chip make it burn less fuel or more?
I drive slow too and its not much better if any. :thumbsdn:
Posted 30 July 2007 - 07:34 PM
djtroy said:
I am looking to get better gas milage out of this thing. I am getting about 6-7 mpg now. Would a chip make it burn less fuel or more?
I drive slow too and its not much better if any. :thumbsdn:
I drive slow too and its not much better if any. :thumbsdn:
Essentially, you could possibly improve the mileage, but I wouldn't expect to break 10 mpg.
Remember, you're driving a medium duty truck with an RV body on it that is over 12 foot tall, and 102" wide. This combined with the gearing under most medium duty trucks isn't very favorable to mileage.
Best thing you can do is slow down-wind resistance is your biggest enemy with something this big.
Posted 30 July 2007 - 09:40 PM
you threw down serious coin for that fun mover and you are worried about a little diesel fuel?
Posted 30 July 2007 - 09:45 PM
exhaust, intake, and a chip maybe..
and maybe a BD left side exhaust manifold.
and throw in a shift kit while your at it..
better fuel mileage
and more power :D
and maybe a BD left side exhaust manifold.
and throw in a shift kit while your at it..
better fuel mileage
and more power :D
Posted 31 July 2007 - 04:58 AM
at least you got a deisel, a good freind retired and got an RV with the 10 cylinder ford, he gets 6 with the wind up his rear going downhill. I think he averages 4,,,,,yikes
Posted 31 July 2007 - 09:22 AM
Well considering the fact most people don't drive their Class C's that much a year, it would probably take awhile to regain the initial hit of the diesel.
Posted 31 July 2007 - 11:50 AM
dirtyriders110 said:
Well considering the fact most people don't drive their Class C's that much a year, it would probably take awhile to regain the initial hit of the diesel.
And that's why my parents chose to get the Ford V-10 in their 39 ft Class A. To upgrade to the diesel pusher chassis and everything that goes with it was over $30,000 more for the same coach. That's alot of fuel.
My parents average 7.2 mpg across the board, and that's flat towing a Saturn Vue. But, they drive 62 mph max (they are in no hurry, they're retired) and when the wind gets bad, they park it.
Start asking RV folks what mileage they are getting with their rigs-you'll be surprised that it isn't that great-not like a pickup truck will.
DJTROY-how fast are you driving?
Speed Comes at a Price
65 MPH vs. 60 MPH = 6.4% Decrease in Fuel Economy
70 MPH vs. 60 MPH = 10.9% Decrease in Fuel Economy
75 MPH vs. 60 MPH = 17.3% Decrease in Fuel Economy
http://www.kenworth....lEfficiency.pdf
Posted 31 July 2007 - 04:42 PM
rolliew said:
you threw down serious coin for that fun mover and you are worried about a little diesel fuel?
Well this statement is pretty self explanitory. Think about what you just wrote. :bonk:
Also do the math.
300 miles round trip on an average weekend. (Thats if I stay local) at 6.5 MPG = 46 gallons of fuel at $2.90 = $133 per weekend plus entry, gas, and food your into $200 - $250 every week. Plus add the insurance and RV payment your close to $500 PER WEEK to own and drive this RV to the track.
So if I could save $50 per week at 10mpg I would be tickled.
Posted 01 August 2007 - 11:30 AM
i would agree how fast are you driving? we have a dmax with a 32 5th wheel and if we keep it around 60 65 we can get 10 mpg. also your a 34-35 ft trailer and then load it up your heavy back you foot out of the gas peddle. its not a race off the line.
Posted 01 August 2007 - 05:36 PM
djtroy said:
I drive from 55-60 max
What rear end gears does the chassis have?
Posted 01 August 2007 - 06:34 PM
chickenhauler said:
What rear end gears does the chassis have?
2:55 with a Holley double pumper.
No I have no clue!!!
Posted 01 August 2007 - 06:42 PM
djtroy said:
2:55 with a Holley double pumper.
No I have no clue!!!
No I have no clue!!!
In the larger trucks, the rule for economy has always been "Gear Fast, Run Slow".
Anything deeper than a 3.55 ratio, and it's too deep for the motor and powertrain you have, most likely.
I'm running 3.30's in my semi, and grossing 80,000 lbs, I can get 6.3 mpg if I keep it under 70. If I run 75, I drop to around 5.8mpg.
Have you ever had the truck in for a checkup with a Duramax tech? Explain to them your concerns, they may be able to help you.
Posted 02 August 2007 - 05:04 AM
sell it and buy a semi. JK
sounds like thier is definatly something wrong. does it seem like your foots in it all the time just to get it "moving"
sounds like thier is definatly something wrong. does it seem like your foots in it all the time just to get it "moving"
Posted 12 November 2007 - 06:55 PM
bully dog sells programmers. do not get a chip. we are passed that stage. K&n air filter and a programmer.will get you more.
Posted 11 December 2007 - 09:22 PM
We've got a Funmover 39c with the bigger cat engine. We get anywhere from 7.5 full, towing, some wind to 9.4 was my best. Yours is probably still breaking in.
