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What is actual gas mileage of Dodge hemi?

 
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crb

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Since: Jul 15, 2005
Posts: 3



(Msg. 1) Posted: Mon Jul 18, 2005 11:24 pm
Post subject: What is actual gas mileage of Dodge hemi?
Archived from groups: alt>autos>dodge>trucks (more info?)

trying to decide between 1500 and a Dakota.

Salesman said the hemi gets about the same gas mileage as the Dakota.
Hard to believe given the HP difference.

which years and engines are good to stay away from in both?

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m.burnside

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Since: Jul 17, 2005
Posts: 1



(Msg. 2) Posted: Tue Jul 19, 2005 12:11 am
Post subject: Re: What is actual gas mileage of Dodge hemi? [Login to view extended thread Info.]
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2004 Durango Hemi. I get around 11-13 in town and setting at 70 I get
around 20.

Encountered stall problem with my hemi at low speed twice and some other
stuff like warning lights coming on. That's my experience.


"crb" wrote in message
> trying to decide between 1500 and a Dakota.
>
> Salesman said the hemi gets about the same gas mileage as the Dakota.
> Hard to believe given the HP difference.
>
> which years and engines are good to stay away from in both?

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Johnny Thunder

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Since: Jun 02, 2005
Posts: 7



(Msg. 3) Posted: Tue Jul 19, 2005 6:55 am
Post subject: Re: What is actual gas mileage of Dodge hemi? [Login to view extended thread Info.]
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crb wrote:
>
> trying to decide between 1500 and a Dakota.
>
> Salesman said the hemi gets about the same gas mileage as the Dakota.
> Hard to believe given the HP difference.
>
> which years and engines are good to stay away from in both?

The 4.7L could be a great motor if they ever work the bugs out of it.

I get about 18 mpg in my Dodge Dakota Lemon, all around, with the
limited slip differential a heavy foot and 15 inch wheels.

JAM
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Ol' Duffer

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Since: Feb 07, 2005
Posts: 9



(Msg. 4) Posted: Tue Jul 19, 2005 1:56 pm
Post subject: Re: What is actual gas mileage of Dodge hemi? [Login to view extended thread Info.]
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In article , anon DeleteThis @net.com says...
> Salesman said the hemi gets about the same gas mileage as the Dakota.
> Hard to believe given the HP difference.

Most people drive by the seat of the pants, i.e. they expect a
certain amount of acceleration and speed and will flog the engine
as hard as needed to achieve the desired feel, regardless of engine
size. Unless the engine is incapable of meeting their unreasonable
expectations, in which case a smaller engine may give better mileage
at the cost of high levels of user whine.

From an engineering perspective, the efficiency of all modern
internal combustion engines is so similar that displacement is
almost irrelevant to mileage. A certain rate of fuel burn makes
the same amount of power in any engine, and mileage is a function
of acceleration and air and rolling resistance. It is only at
the margins of the engines' performance envelopes where there is
a significant advantage to a larger or smaller engine in a given
application.
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SnoMan




Joined: May 17, 2005
Posts: 1396



(Msg. 5) Posted: Tue Jul 19, 2005 3:23 pm
Post subject: Re: What is actual gas mileage of Dodge hemi? [Login to view extended thread Info.]

Ol' Duffer wrote:

From an engineering perspective, the efficiency of all modern
internal combustion engines is so similar that displacement is
almost irrelevant to mileage. A certain rate of fuel burn makes
the same amount of power in any engine, and mileage is a function
of acceleration and air and rolling resistance. It is only at
the margins of the engines' performance envelopes where there is
a significant advantage to a larger or smaller engine in a given
application.


The larger the engine the more heat loss as there is increased surface area in the engine and it is the expanding gases cause by heat that delivers the force to power a engine. You also have to factor in engine design and its rpm for peak VE (Volumetric Efficency) because when a engine is running at or near its torque peak (which is also were peak VE is) it will consume the least amount of fuel under a moderate to heavy load for the amount of HP it produces (known as HP hrs per gallon a fuel) If a smaller engine is properly geared (and gearing is the key here) for the load it will deliver better MPG just about every time AND it will use less fuel idling in traffic too because the bigger engine will burn more fuel there not only because of size but also because more energy is require to overcome internal friction and increased cooling requirements of a bigger engine which means more fuel too. Under a very heavy load a big engine will sometime do better than a smaller one MPG wise (again if it is geared correctly) because it will operate at a lower cylinder pressure to deliver the same amount of power output (but this is only true with a very heavy load and bigger engine running near its VE too and not being lugged below it)
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HoDad

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Since: Feb 21, 2005
Posts: 22



(Msg. 6) Posted: Tue Jul 19, 2005 9:19 pm
Post subject: Re: What is actual gas mileage of Dodge hemi? [Login to view extended thread Info.]
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"Johnny Thunder" wrote in message

> crb wrote:
> >
> > trying to decide between 1500 and a Dakota.
> >
> > Salesman said the hemi gets about the same gas mileage as the Dakota.
> > Hard to believe given the HP difference.
> >
> > which years and engines are good to stay away from in both?
>
> The 4.7L could be a great motor if they ever work the bugs out of it.
>

Just what 'bugs' are you refering to? I have read about a couple of
misconceptions, (such as sludge forming), but understand it to be a very
reliable engine. Post some links explaining these 'bugs'.

HD
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Michael Bromley

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Since: Apr 04, 2005
Posts: 8



(Msg. 7) Posted: Wed Jul 20, 2005 2:24 am
Post subject: Re: What is actual gas mileage of Dodge hemi? [Login to view extended thread Info.]
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"crb" wrote in message
> trying to decide between 1500 and a Dakota.
>
> Salesman said the hemi gets about the same gas mileage as the Dakota.
> Hard to believe given the HP difference.
>
> which years and engines are good to stay away from in both?

I have a 2004 1500 with the 5.7 liter hemi. My driving is probably 60/40
highway/city. I get right around 17mpg. Long highway trips at 65 I can get
a little better than 19mpg. If you have a lead foot you won't get anywhere
near this. Heavy acceleration will significantly lower these numbers.

Mike
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JPH

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Since: Jul 19, 2005
Posts: 29



(Msg. 8) Posted: Wed Jul 20, 2005 2:27 am
Post subject: Re: What is actual gas mileage of Dodge hemi? [Login to view extended thread Info.]
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Michael Bromley wrote:
> "crb" wrote in message
>
>>trying to decide between 1500 and a Dakota.
>>
>>Salesman said the hemi gets about the same gas mileage as the Dakota.
>>Hard to believe given the HP difference.
>>
>>which years and engines are good to stay away from in both?
>
>
> I have a 2004 1500 with the 5.7 liter hemi. My driving is probably 60/40
> highway/city. I get right around 17mpg. Long highway trips at 65 I can get
> a little better than 19mpg. If you have a lead foot you won't get anywhere
> near this. Heavy acceleration will significantly lower these numbers.
>
> Mike
>
>
I have a 2004 Dakota Quad Cab with 4.7 4x2 just went past 10,000 miles.
Got back last week from a long trip from OK to PA and back, pulling a
4700 lb trailer at 65-70 speeds got 12 MPG average, and the truck
performed fine going over the hills in TN. Coming back without the
trailer, averaged 19.5 (2 tanks were just over 20 MPG) at an average 70
MPH speed.
Not nearly as good as the old Ford Ranger I used to have with the 4
cylinder stick shift (24/28 MPG), but then that one couldn't have pulled
the trailer or carried 5 people, either.

Good luck in whichever you choose, but I think I liked the 2002 Dodge
1500 that I used to have a little bit better than the Dakota. (That only
had a 3.7 engine, which was fine with stick shift if you don't tow heavy
loads)

JPH
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Christopher Thompson

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Since: May 01, 2005
Posts: 52



(Msg. 9) Posted: Sun Jul 24, 2005 12:55 am
Post subject: Re: What is actual gas mileage of Dodge hemi? [Login to view extended thread Info.]
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"Michael Bromley" wrote in message

>
> "crb" wrote in message

> > trying to decide between 1500 and a Dakota.
> >
> > Salesman said the hemi gets about the same gas mileage as the Dakota.
> > Hard to believe given the HP difference.
> >
> > which years and engines are good to stay away from in both?
>
> I have a 2004 1500 with the 5.7 liter hemi. My driving is probably 60/40
> highway/city. I get right around 17mpg. Long highway trips at 65 I can
get
> a little better than 19mpg. If you have a lead foot you won't get
anywhere
> near this. Heavy acceleration will significantly lower these numbers.
>
> Mike
>




then where's the fun in having the hemi if you cant turn er loose???? =)
>
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SnoMan




Joined: May 17, 2005
Posts: 1396



(Msg. 10) Posted: Sun Jul 24, 2005 11:32 am
Post subject: Re: What is actual gas mileage of Dodge hemi? [Login to view extended thread Info.]

Christopher Thompson wrote:


then where's the fun in having the hemi if you cant turn er loose???? =)


In a heavy SUV/Truck it is a LOT more show than go.
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user1686

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Since: Jan 03, 2005
Posts: 230



(Msg. 11) Posted: Mon Jul 25, 2005 1:30 pm
Post subject: Re: What is actual gas mileage of Dodge hemi? [Login to view extended thread Info.]
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On 24 Jul 2005 15:36:29 -0400, SnoMan wrote:

>"Christopher Thompson" wrote:
>>
>>
>>then where’s the fun in having the hemi if you cant turn er
>>loose???? =)
>>
>
>In a heavy SUV/Truck it is a LOT more show than go.

you mean that there's a reason for the word "Hemi" to be in big, ugly letters on
those durangos??


mac

Please remove splinters before emailing
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BDK

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Since: Feb 10, 2005
Posts: 19



(Msg. 12) Posted: Tue Jul 26, 2005 2:02 am
Post subject: Re: What is actual gas mileage of Dodge hemi? [Login to view extended thread Info.]
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In article ,
mac.davis.RemoveThis@splinters.comcast.net says...
> On 24 Jul 2005 15:36:29 -0400, SnoMan wrote:
>
> >"Christopher Thompson" wrote:
> >>
> >>
> >>then where?s the fun in having the hemi if you cant turn er
> >>loose???? =)
> >>
> >
> >In a heavy SUV/Truck it is a LOT more show than go.
>
> you mean that there's a reason for the word "Hemi" to be in big, ugly letters on
> those durangos??
>
>
> mac
>
> Please remove splinters before emailing
>

It's more to get you distracted, so you won't realize you're looking at
one of the ugliest SUVs ever made..Wink

BDK
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miles6

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Since: Oct 10, 2004
Posts: 737



(Msg. 13) Posted: Tue Jul 26, 2005 10:31 am
Post subject: Re: What is actual gas mileage of Dodge hemi? [Login to view extended thread Info.]
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BDK wrote:

> It's more to get you distracted, so you won't realize you're looking at
> one of the ugliest SUVs ever made..Wink

Well I have one and ya, the front end is ugly. But it sure drives nice,
is comfy inside and tows my trailer far better than my '01 Ram 5.9L
gasser. There's nothing else on the market that comes close to it's
capabilities for the money (23K for '04 4x4 Durango SLT Hemi).
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Christopher Thompson

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Since: May 01, 2005
Posts: 52



(Msg. 14) Posted: Tue Jul 26, 2005 8:55 pm
Post subject: Re: What is actual gas mileage of Dodge hemi? [Login to view extended thread Info.]
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"mac davis" wrote in message

> On 24 Jul 2005 15:36:29 -0400, SnoMan
wrote:
>
> >"Christopher Thompson" wrote:
> >>
> >>
> >>then where's the fun in having the hemi if you cant turn er
> >>loose???? =)
> >>
> >
> >In a heavy SUV/Truck it is a LOT more show than go.
>
> you mean that there's a reason for the word "Hemi" to be in big, ugly
letters on
> those durangos??
>
>
> mac

i thought the letters was one of the more appealing features.
seriously we have got to get them to do something about those grills!
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randy1128

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Since: Aug 18, 2003
Posts: 47



(Msg. 15) Posted: Tue Jul 26, 2005 10:44 pm
Post subject: Re: What is actual gas mileage of Dodge hemi? [Login to view extended thread Info.]
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