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Old November 29th, 2006, 08:45 PM   #1
Fatty Matty
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Default 4.7 mileage. Why is it so bad?

I have a Durango that I picked up 2 months ago. It has 3k on it. 4.7 auto, awd.

It sucks gas. I'm only averaging 13mpg tops.

I'm a slow driver. I rarely pass anybody. Tires are inflated properly.

Is this typical? I knew it wouldn't be good on gas, but damn, it really sucks it down. It makes my TJ look like an economy car.

Any thoughts?
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Old November 29th, 2006, 10:36 PM   #2
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Big vehicle, small motor. I had the same problem with my first Ram, a 318/1500.

Maybe you're driving too slow and not quite in the motors optimal rpm range for cruising. That happens to make a big difference in my XJ.
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Old November 30th, 2006, 08:08 PM   #3
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The body engine combo makes sense, kind of like the old chevy truck I used to have with the 4.3 in it. It sucked gas too.

It may be possible that I am driving too slow also. For some reason, I'm just not in that much of a hurry.

thanks.
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Old November 30th, 2006, 08:18 PM   #4
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That 4.7 is a beast on the gas. My last Durango had the Hemi with the multi-displacement and I averaged about 16 mpg. My parents had the same problem with a Ram they had, it had the 4.7 in it and the Ram they have now gets better gas milage with the Hemi.
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Old November 30th, 2006, 08:33 PM   #5
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I have a 2005 durango with the 4.7 and a 2006 dakota with the 4.7. The way to get around this issue is to stop keeping track of milage.
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Old November 30th, 2006, 08:41 PM   #6
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I have a 2000 Dakota 4.7 I bought new.

17 MPG is about the best I've seen. It goes like a raped ape, but it like da gas - just like the 3.7 V6 Libby (same basic engine, less two cylinders).
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Old November 30th, 2006, 10:04 PM   #7
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Quote:
Originally Posted by PavementPounder View Post
Maybe you're driving too slow and not quite in the motors optimal rpm range for cruising. That happens to make a big difference in my XJ.
I second that....I know with my ranger, I get far better milage on the highway when cruising around 2500-2700 rpm, as opposed to 2k

or, it could be the small engine big vehicle thing - althought any durango I've driven with that motor didn't seam under powered to me
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Old December 1st, 2006, 10:41 PM   #8
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Not to mention AWD makes a considerable difference. My girlfriends 01 Dak has it and she wont let me change the T-case. She likes beating people from traffic lights with it. With 33's shes getting about 12.5 in it though. Lets also not forget that it is a notorious DODGE thing to be a gas hog.
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Old December 2nd, 2006, 01:31 PM   #9
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Quick comparison to add to the list:

My truck: '01 Ram, reg cab, short box, 5.9L, 4WD, 33 inch tires, off road package (4.10 gears) and it gets on average 14-16 mpg.

My friend's truck: '06 Ram, reg cab, short box, 3.7L 2wd, tiny tires, and he gets the same gas mileage as I do.

You would think mine would be getting much worse, but that 3.7L has so much of a load on it to keep that truck moving it just sucks gas.

A smaller motor doesn't always mean better gas mileage, alot of it has to do with the vehicle itself.

350 in past 'Vettes got good gas mileage, the same motor just not as powerful got worse gas mileage in trucks. Same idea.
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Old December 2nd, 2006, 01:40 PM   #10
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If you want good gas mileage don't buy anything with a V8 or a truck for that matter.
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Old December 2nd, 2006, 07:54 PM   #11
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If you want good gas mileage don't buy anything with a V8 or a truck for that matter.
This is my 3rd truck in 6 years. I know they suck gas. Its not a Neon. If I was dirt poor, I would have bought a Focus if gas was that big of an issue. Besides, I already own a new Taurus.

Its the extent of the gas that it actually uses, which is quite a bit more than other trucks of the same size. 13mpg isnt very good, at all. An Expedition or Tahoe gets better, and they are both bigger. My Dakota did much better pulling a ton all the way up north doing 75mph.

The matter is that the window sticker is way off from what you would get in real world conditions.

Dont get me wrong, I like the Durango. Its comfy, rides nice, and has a ton of room. The only reason I bought it is the fact that I have kids, and the TJ wasnt the safest thing to be driving 250 miles to my folks place.
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Old December 2nd, 2006, 09:32 PM   #12
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Quote:
Originally Posted by Fatty Matty View Post
This is my 3rd truck in 6 years. I know they suck gas. Its not a Neon. If I was dirt poor, I would have bought a Focus if gas was that big of an issue. Besides, I already own a new Taurus.

Its the extent of the gas that it actually uses, which is quite a bit more than other trucks of the same size. 13mpg isnt very good, at all. An Expedition or Tahoe gets better, and they are both bigger. My Dakota did much better pulling a ton all the way up north doing 75mph.

The matter is that the window sticker is way off from what you would get in real world conditions.

Dont get me wrong, I like the Durango. Its comfy, rides nice, and has a ton of room. The only reason I bought it is the fact that I have kids, and the TJ wasnt the safest thing to be driving 250 miles to my folks place.
I don't know how many miles you have on it, but you will not get the best mileage until much later. I noticed on my last few leases that the best milage is before I turn them in. They get broken in at about 20k.
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Old December 2nd, 2006, 09:35 PM   #13
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I think all Durangos get shitty mileage. I know a few people with 4.7L, 5.2L and 5.9L....all get the same mileage as you are stating.
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Old December 2nd, 2006, 09:43 PM   #14
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Quote:
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350 in past 'Vettes got good gas mileage, the same motor just not as powerful got worse gas mileage in trucks. Same idea.
...because a relativley lightweight sportscar has everything in common with a tall pickup


When my dad was shopping for a Durango a few years back I noticed the 4.7 was only rated 1 mpg better then the 5.9. The AWD probably saps a lot of potential fuel economy as well.
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Old December 2nd, 2006, 10:18 PM   #15
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dunno my 4.7L grand gets pretty good gas milage. around 20 on the freeway at 70 mph. flowmaster and K&N FIPK made a difference too though. 60K miles.
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Old December 2nd, 2006, 10:24 PM   #16
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you might want to look in the owners manual to see if you are supose to be using a higher oct of fuel. my 5.7L in my 05 ram calls for 89 over 87 and it makes a differance by about 3-5 mpg
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Old December 3rd, 2006, 12:24 PM   #17
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Gearing also makes a difference. Whats the gearing difference between the trucks you listed? Like I said before the AWD plays a big role and Im sure the sticker wasnt for an AWD.
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Old December 7th, 2006, 01:38 PM   #18
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I see it this way.

It's heavy, it's still new, and it's AWD.

The only thing that irritates me about the truck is the AWD. If I need 4wd, let me pull a lever to do it. I don't need the truck to do it for me. All of the new GC's I drove had the same thing. I understand it's a soccer mom ride, but let the driver decide what to do.

How am I supposed to do donuts with the kids if I can't have just 2wd?
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Old December 7th, 2006, 01:45 PM   #19
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Quote:
Originally Posted by Fatty Matty View Post
I see it this way.

It's heavy, it's still new, and it's AWD.

The only thing that irritates me about the truck is the AWD. If I need 4wd, let me pull a lever to do it. I don't need the truck to do it for me. All of the new GC's I drove had the same thing. I understand it's a soccer mom ride, but let the driver decide what to do.

How am I supposed to do donuts with the kids if I can't have just 2wd?
4wd/AWD tornados are fun as well
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Old December 7th, 2006, 02:39 PM   #20
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I had a Durango with the 5.9. It got 13 avg
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