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#3271728 - 02/05/14 06:54 PM 5.7 Hemi fuel mileage
motor_oil_madman Online   content


Registered: 11/29/09
Posts: 2606
Loc: Houston, Texas
I remember a long time ago one of my teachers complained that he got 8-10mpg on his ram 1500. Are they really that bad on fuel mileage? I never asked how far away from work he lived but maybe if he only drove a few miles then that could be the cause. I would think they could atleast get 13-15 average. If not do they at least hall [censored] to make up for it? I'm talking about the 2003-1008 model era dodge ram.
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2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.


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#3271741 - 02/05/14 07:08 PM Re: 5.7 Hemi fuel mileage [Re: motor_oil_madman]
ECUpirate Offline


Registered: 11/17/12
Posts: 179
Loc: US
My FIL has a 2005 4x4 Quad Cab Ram w/ the Hemi, totally stock, perfect condition (except for the cracked dash) and only 30k miles. He was nice enough to loan it to us to drive while we were looking for my new truck. After 3 weeks with it doing about a 75/25 mix of hwy/city I had a hand calculated average of 9.1 mpg through 6 tanks and I drive pretty conservatively, too. Seems pretty typical with the few owners I know with similar trucks. It was a nice truck but I was glad to give it back to him.
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#3271744 - 02/05/14 07:12 PM Re: 5.7 Hemi fuel mileage [Re: motor_oil_madman]
Miller88 Online   content


Registered: 04/09/08
Posts: 11031
Loc: Onondaga County
I remember when the "new" ram came out in the mid 90s, even the 5.2 (318) half ton was getting single digit mileage. A couple of reviews noted the single digit gas mileage was very low for a half ton pickup.
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#3271749 - 02/05/14 07:12 PM Re: 5.7 Hemi fuel mileage [Re: motor_oil_madman]
laserred96gt Online   content


Registered: 03/03/13
Posts: 719
Loc: Florida
A friend of mine said 12-14 city, 18-24 highway, 04 Ram pick up.
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#3271773 - 02/05/14 07:29 PM Re: 5.7 Hemi fuel mileage [Re: motor_oil_madman]
Clevy Offline


Registered: 11/11/10
Posts: 9782
Loc: Saskatoon canada
I had an 04 quad cab 4x4 last winter. I bought it with 240k and totalled it with 270k.
Highway I got from 17-22mpg depending on wind. City mileage was atrocious though.
Great truck though. I miss it.
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#3271781 - 02/05/14 07:39 PM Re: 5.7 Hemi fuel mileage [Re: motor_oil_madman]
NHGUY Offline


Registered: 10/09/11
Posts: 4655
Loc: USA
I would have thought the MDS would have made a difference.Much like GMs Multiple Displacement setup.

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#3271787 - 02/05/14 07:41 PM Re: 5.7 Hemi fuel mileage [Re: NHGUY]
motor_oil_madman Online   content


Registered: 11/29/09
Posts: 2606
Loc: Houston, Texas
Isn't the Hemi a pretty low tech engine? Maybe that's why.
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2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.


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#3271800 - 02/05/14 07:57 PM Re: 5.7 Hemi fuel mileage [Re: motor_oil_madman]
dave1251 Offline


Registered: 07/15/05
Posts: 8110
Loc: Maricopa, AZ
I had a 2006 5.7 quad cab 1500. Average fuel economy was 14-18 MPG. It would be pretty hard for me to average single digits.
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#3271802 - 02/05/14 07:59 PM Re: 5.7 Hemi fuel mileage [Re: NHGUY]
Clevy Offline


Registered: 11/11/10
Posts: 9782
Loc: Saskatoon canada
Originally Posted By: NHGUY
I would have thought the MDS would have made a difference.Much like GMs Multiple Displacement setup.



I don't mds got into the trucks til 2008.
My charger is an 06 and it has mds and I have gotten 30mpg on the highway. With winter fuel I'm getting from 26-28.
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2006 Charger RT
Miles x 2 per oil filter

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#3271813 - 02/05/14 08:08 PM Re: 5.7 Hemi fuel mileage [Re: motor_oil_madman]
ECUpirate Offline


Registered: 11/17/12
Posts: 179
Loc: US
I think MDS came to the Ram in 2006 but I'm not 100% sure and don't feel like looking it up. My FIL truck also had 20" rims. Maybe different gear ratios? I do know that truck never sniffed 14 mpg even through a full tank on I-95 with the cruise control set at 65...
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#3271824 - 02/05/14 08:16 PM Re: 5.7 Hemi fuel mileage [Re: laserred96gt]
mrsilv04 Offline


Registered: 12/08/06
Posts: 7784
Loc: Illinois
Originally Posted By: laserred96gt
A friend of mine said 12-14 city, 18-24 highway, 04 Ram pick up.


24 with what pushing him? Tropical storm winds?
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#3271834 - 02/05/14 08:24 PM Re: 5.7 Hemi fuel mileage [Re: motor_oil_madman]
dave1251 Offline


Registered: 07/15/05
Posts: 8110
Loc: Maricopa, AZ
MDS came out in 2006. I had a 5.7 with MDS. It worked better IMO than the 08 Tahoe I had with AFM.
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make the inside of your engine oil cap white.
don't use.

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#3271929 - 02/05/14 09:59 PM Re: 5.7 Hemi fuel mileage [Re: motor_oil_madman]
coolbird101 Offline


Registered: 11/22/12
Posts: 352
Loc: South Florida
I average just above 14 with 50/50 mix city/hwy. I get 17 on the hwy. in the 65 mph to 70 mph range, over 70 it drops way off.
Non MDS hemi 5.7. - 3.92 rear end - 20 " wheels.
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#3271943 - 02/05/14 10:15 PM Re: 5.7 Hemi fuel mileage [Re: coolbird101]
ECUpirate Offline


Registered: 11/17/12
Posts: 179
Loc: US
Originally Posted By: coolbird101
I average just above 14 with 50/50 mix city/hwy. I get 17 on the hwy. in the 65 mph to 70 mph range, over 70 it drops way off.
Non MDS hemi 5.7. - 3.92 rear end - 20 " wheels.


4x4 quad cab? If so, that's weird. I work with 3 people that struggle for 12 mpg average on their non-MDS hemi 4x4s (2 quad cabs and 1 ECLB) and get nowhere close to 17 mpg hwy. We were actually discussing it yesterday since I recently purchased my Silverado and they were asking about my mileage. I wonder if regional fuel blends or some other factor could affect mileage that much? I had a lifted 200k mile 5.4 Expedition 4x4 on 35" tires and 3.73 gears that would get better gas mileage than the low mileage bone stock Ram I was driving. My wife even commented that I had better not look for a Ram unless we took out a 2nd mortgage to pay for gas. I'm not saying you guys aren't being honest, just that I've never heard of any older Dodge hemi getting 17+ mpg hwy in 4x4 form.
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Beaters on cheap oil x3

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#3271985 - 02/05/14 10:55 PM Re: 5.7 Hemi fuel mileage [Re: Clevy]
bvance554 Offline


Registered: 09/24/12
Posts: 1803
Loc: VA
Originally Posted By: Clevy
Originally Posted By: NHGUY
I would have thought the MDS would have made a difference.Much like GMs Multiple Displacement setup.



I don't mds got into the trucks til 2008.
My charger is an 06 and it has mds and I have gotten 30mpg on the highway. With winter fuel I'm getting from 26-28.


Do you think this is because of the winter fuel, or because its just winter? Vehicles always get less mpg in the winter, regardless of fuel.

I should say vehicles are less efficient in cold temps, not that vehicles get less mpg in winter.


Edited by bvance554 (02/05/14 10:57 PM)

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