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Dodge Ram Real World MPG Numbers

284 messages,  Last post on Nov 21, 2009 at 6:28 PM

You are in the Dodge Ram Forum. Your Host is kcram

What is this discussion about? Dodge Ram Pickup 1500, Dodge Ram Pickup 2500, Dodge Ram Pickup 3500, Fuel System, Fuel Efficiency (MPG), Truck

This is the place to discuss (or even brag about) the mileage performance of your Ram pickup!


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#216 of 284
1998 Ram 1500 Quad Cab 4x4 5.9L Auto by 98ddgram1500
Dec 20, 2007 (12:00 pm)
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1998 Ram 1500 Quad Cab 4x4 5.9L Auto
Stock gearing.
I get 10.9 City using 87 octane. No mods to the engine with 265/75/16 tires.
I never drive on the highway since my work commute is 10 miles from my house. We got some snow the other day and driving with 4x4 100% of the distance to where I was going only affected the overall MPG by .2MPG. But that might be due to driving slower and with caution. I love the truck aside from its DodgeISMs. Bad steering and bad transmission (knock on wood my tranny is still working fine). I am going to get a DSS steering kit to fix the trackbar issue. See this site: http://www.solidsteel.biz/tbk.htm
 
#219 of 284
Re: 97 dodge ram 1500 fuel milage [rangersgoalie] by madjack00
Dec 26, 2007 (6:01 am)
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Replying to: rangersgoalie (Jan 02, 2005 4:23 pm)

I am in denver and have an 03 5.9 2dr short bed automatic 2whl dr. I use 85 octane and get a consistent 14mpg city. I found my 5.9 runs best on bosch platinum 4 plugs. I have gone to a K&N filter and use mobile 1 full synthetic oil. I feel it does well considering the altitude.
#220 of 284
Re: 97 dodge ram 1500 fuel milage [madjack00] by 98ddgram1500
Dec 26, 2007 (7:06 am)
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Replying to: madjack00 (Dec 26, 2007 6:01 am)

Wow, thats fantastic. You have the stock sized tires? Asking because maybe your speedo is off and might be the reason for getting such good city MPG. the K&N doesn't do anything unless you are WOT, also heard that the oil based filters are bad for the O2 sensor over a period of time.
I get 10.9MPG (city) with my 98 RAM 1500 5.9 automatic 4x4 Quad Cab (245/75/16) with a bed cover. No other mods to the engine.
 
I will have to try those plugs on its soon to happen tune up.
#221 of 284
Re: 97 dodge ram 1500 fuel milage [98ddgram1500] by 98ddgram1500
Dec 26, 2007 (10:49 am)
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Replying to: 98ddgram1500 (Dec 26, 2007 7:06 am)

I use hard numbers as you call it.
Correction to my last message. I get 10.5MPG with the tonneau and 10.9MPG without it.
The "Saves Gas" is a sales pitch with tonneau covers, and its false. Its been proven by mythbusters TWICE that they DO NOT help your MPG, they actually make it worse. The best way to go was the mesh airgate thing, but its too tacky to use, then second best was with the tailgate UP.
the Tonneaus and the tailgate down or off were the worst ways, so put those gates back up. I use the Tonneau because of the New England snow/rain, but roll it up otherwise.
#222 of 284
2008 Dodge Cummings by wa4ko
Dec 30, 2007 (6:59 am)
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Bought a 2008 Dodge Cummings 3500 after having four of these trucks before. The MPG is very poor compared with prior trucks, lost over 4 MPG both regular and towing. Bought a Super Chip and found that even the one
made for the 2008 Dodge the #3808 will not tune the truck, they still do not have the right codes to do the job so I returned it. If anyone has had any luck with a computer tuner that works let me know.
Thanks Larry
#223 of 284
07 2500 QC 2X 5.9 CTD auto by 949racing
Dec 31, 2007 (12:11 am)
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Replying to: wa4ko (Dec 30, 2007 6:59 am)

About 3500 miles on it, running Amsoil DEO 5W40 synthetic, 60psi F&R. Utterly stock SLT Bighorn otherwise. Sea level, 55-75* ambient, empty:
 
20.9 H/C ( hand calculated) 74mph. O/H (overhead) displays 23mpg.
22.2 70mph
 
18.2mpg towing 4500# flat car hauler over two 6000' passes from Vegas to LA at about 68mph
 
A few observations:
 
Tried a set of high quality 285/70/17 10 ply highway tires an mileage plummeted to about 17.5 70mph. Saved the 265/70/17 10 ply Michelin's that it came with, put them back on and mileage jumped back to low 20's. Amsoil was worth about .8mpg and a little better turbo response at small throttle openings.
 
Mileage nose dives abruptly past 75mph. The 6 speed manual would probably allow me to cruise with LA traffic and not get MPG penalized so much.
 
Tailgate removed makes no difference at any speed.
 
Driving un-smoothly and accelerating in traffic off crusie control doesn't hurt mileage nearly as much as even the tinest hill. That's a lot of power to accelerate it but a bunch of weight to push up a hill.
 
Test drove the 6.7 CTD with same equipment and mileage was nowhere near as good, struggling top get into the 20's at even 65mph. I like the equipment and trans in the newer 6.7 but couldn't accept the mileage difference.
 
Wish it was quieter cruising and had a 6 speed auto, otherwise this thing is an utter gem.
#224 of 284
Re: 07 2500 QC 2X 5.9 CTD auto [949racing] by 98ddgram1500
Dec 31, 2007 (4:39 am)
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Replying to: 949racing (Dec 31, 2007 12:11 am)

Great detail in your post. My 98 RAM is using the optional sized tires of 265/75/16, I wanted to get the stock sized 245/75/16 to help in MPG, sounds like doing so will certainly help. I am a 90%+ back road driver since i don't commute to work, so I can't get any highway MPG to help the overall average.
 
I am glad you tired the tailgate, you need to see episode 43 and 64 of Mythbusters. Here is a quote from episode 64 "Tailgate Up or Down Revisited: in addition to tailgate up/down, also tested hardcover over pickup bed, tailgate removed, and tailgate mesh. Tailgate mesh was most efficient by 5%. busted "
 
With my tonneau I lose 0.5MPH city. I use it primarily in the winter to prevent the bed from filling up with all that New England Snow...
#225 of 284
RAMROD2 by ramrod2
Jan 23, 2008 (8:06 am)
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Concerning fuel mileage: I own a 2006 with 5.7ltr and mds. The only modifications are nitrogen filled tires (35PPI) and synthetic oil, With cruise set at 70 mph I can regularly get well over 21 miles per gallon (latest trip from Ringgold to Kingsland Ga was 21.9) City not much better than advertized (l6.1)
I've also found that although Dodge recommends 89 octane for the HEMI, better milage can be obtained from 87 octane.
Next trip I"ll set the cruise to 65 mph (my Dodge book says MDS works ONLY up to 65 mph! So far, nobody can verify that.
Dodge also says that the 2009 model extends the speed limit for the same engine and MDS to 70 mph. Kind of makes one wonder, huh?

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