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pbulski
Dodge Dakota
6/26/2001
18:23:49
|
 Subject: 4.7L Mileage Sucks!
IP: Logged
Message:
C'mon boys, help me out here. Dodge says 16 city and 19 hwy on my 2000 4.7L club cab?!?! BULLS%$*!!!! I drive some city and some highway and get about 14.0 MPG. I've tried babying it, I've tried getting on it... MPG doesn't change.
Any suggestions? Modifications?
Thanks fellas
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Dan Gruber
Gen III
 
6/26/2001
21:00:29
|  RE: 4.7L Mileage Sucks!
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Message:
Just remember that it's not Dodge who rates the mileage, it is the EPA...the same people who said it was safe to live near the Love Canal in NY. In my opinion, their mileage figures are still inflated despite their downward revision of ratings 10 or so years ago. Dodge could probably build the 4.7 to live up to its EPA ratings, but it would probably have about 170 HP and a redline of 4200 RPM. Conversely, I could probably get 14 in town if I never touched the gas pedal. I'll live with my 13 city/16-17 highway in spite of the EPA estimate of 14/19 for my truck.
Maybe the EPA does their testing facing downhill.
Dan
2000 CC SLT 4.7 4X4 Auto 3.55 LSD
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kraw
Dodge Dakota
6/26/2001
22:12:58
| RE: 4.7L Mileage Sucks!
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Message:
My truck got crappy mileage until I got some miles on it.. then I added a cover and K&N.. now I do great. I have a 5.2, but I would think a 4.7 should do better as you get more miles on it
hth
www.krawdaddy.net
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kj
Dodge Dakota
6/26/2001
22:57:56
| RE: 4.7L Mileage Sucks!
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Message:
The sticker on my 2000 4.7 Club Cab listed 14 city and 19 highway. I'm not sure of the city mileage although it doesn't seem very good but it gets about 17 on the main roads at 55-60.
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Horbedarn
Gen I
6/26/2001
23:50:29
| RE: 4.7L Mileage Sucks!
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Message:
I have the 4.7 in a CC with the auto, 3.55 gears, 31" tires, and HD suspension and stuff and I get 18 on average and 20 if I do 80 consistantly. I have done a Borla cat-back exhaust, Airaid intake filter system, and the Airaid TB spacer. I do have almost 24000 miles thought. It did get better as I got more miles. Other than that I don't know what to tell you. I am not a lead foot and I don't always baby it.
2000, CC, SLT, 4x4, 4.7, 3.55, Auto
Exhaust, Air Intake, TB Spacer
MTX Amped Thunderform
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Tim
Dodge Dakota
6/27/2001
07:20:11
| RE: 4.7L Mileage Sucks!
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Message:
My 99 3.9 V-6 is rated at 16 city and 21 hwy. And it does indeed get 16 in the city but i've never had the chance to measure hwy mpg.
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Tim
Dodge Dakota
6/27/2001
07:20:41
| RE: 4.7L Mileage Sucks!
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Message:
My 99 3.9 V-6 is rated at 16 city and 21 hwy. And it does indeed get 16 in the city but i've never had the chance to measure hwy mpg.
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Jeffster
Dodge Dakota
6/27/2001
12:20:24
| RE: 4.7L Mileage Sucks!
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Message:
Mine says 16 city 27 highway with 2WD reg cab and 5 speed. I find if I shift very quickly thru the gears at around 1,500 rpm's to keep the RPM's down I do get great gas milage. This truck drinks way more than my 5.2 CC 4X4 did if the running high rpm's. Ususally if I am cruisng I shit into 5th at around 40mph if it's flat and the needle doesn't even move then. It also getting better now that I have close to 3,000 miles on it.
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BB2
Dodge Dakota
6/27/2001
12:59:04
| RE: 4.7L Mileage Sucks!
IP: Logged
Message:
Check what other people are saying about
gas Mileage on the forum.
Look for subject: mpg survey
------------------------------------------
Here is my MPG results on my 4.7l 5-Speed
Commute Mileage ~ 15.5 Mpg
Highway Mileage ~ 19.5 Mpg
Towing a 2500lb trailer ~ 13.5 Mpg
2001 Quad Cab SLT+ 4.7L 5-Speed 3.55 Lslip
Garnet Red ARE Cap,
ArmaCoat Sprayed in Bed-liner
K&N Drop In Filter & Autolite 3923 Plugs
5,000 miles
http://www.dodgedakota.net/albums/viewer/101.htm
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MikeC
Dodge Dakota
6/27/2001
13:00:26
| RE: 4.7L Mileage Sucks!
IP: Logged
Message:
My 4.7 4X4 is broken in now..got about 10k on it, and it gets around 18mpg highway, still al lstock parts. I found the nice ol' trick of leaving the tailgate down can get me 19 easy. Very easy. Can't wait to get some K&N and a Gibson on it...
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CyberWolf
Dodge Dakota
6/27/2001
13:52:11
| RE: 4.7L Mileage Sucks!
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Message:
Universities have done extensive research on the "tailgate down" theory. They have found that leaving the tailgate down actually increases drag on our daks by 6%. The only thing that decreased drag from tailgate up was a tonneau cover. With the tailgate up you create a large air bubble in your bed which allows air to flow more effeciently over your bed. With the tailgate down you break the air bubble and break up the airflow over your cab creating more drag.
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darkapple
Dodge Dakota
6/27/2001
14:20:25
|  RE: 4.7L Mileage Sucks!
IP: Logged
Message:
just got my 4x4 Sport/QC/4x4/4.7/auto/T&H/
3.92LSD last week. got about 500 miles on it
so far.
even with the engine still tight (only 500
miles), and 3.92 gears, i still manage to get
an easy 18mpg on the highway at a 75mph
cruise. all completely stock.
people seem to think 3.92's are *much*
worse for MPG....little secret...they're NOT...
with the 3.92 gears, engine doesn't have to
labour as much it seems (factor of higher
torque multiplication).
I'm sure that when I get a couple thousand
miles racked up, i'll be at 20mpg @75mph no
problem.
I did find that mileage only truly gets decent
(17-18) when the torque converter locks up. if
for some reason (incline, heavy foot, etc.) the
converter isn't allowed to lock, then i can see
why you'd be hard pressed to get more than
14mpg, 'cause that's what it's at in mine until it
jumps up to 17-18 (after converter locks up no
doubt).
it'll all in how you drive 'em...
cheers,
Luc
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Art
Dodge Dakota
6/27/2001
14:46:21
| RE: 4.7L Mileage Sucks!
IP: Logged
Message:
Nice info cyberwolf
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MikeC
Dodge Dakota
6/27/2001
16:18:59
| RE: 4.7L Mileage Sucks!
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Message:
Ahh...studies, schmudies. My hard evidence points to better mileage ;-).
J/K...
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Dan Gruber
Gen III
6/27/2001
18:24:50
| RE: 4.7L Mileage Sucks!
IP: Logged
Message:
Check this site for the real deal on tailgates, tonneau covers, caps, etc. as it relates to aerodynamics. Understand however that city mileage is not going to be affected all that much by aerodynamics. Highway mileage will be greatly affected.
http://mars.acnet.wnec.edu/~ehaffner/did.htm
Naturally, my cap provides the largest increase in drag. Hence my lousy mileage.
Dan
2000 CC SLT 4.7 4X4 Auto 3.55 LSD
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Bob
Dodge Dakota
6/27/2001
18:45:22
| RE: 4.7L Mileage Sucks!
IP: Logged
Message:
Jeffster,did you say you where getting 27 on the highway?
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sandman
Dodge Dakota
6/27/2001
20:34:01
| RE: 4.7L Mileage Sucks!
IP: Logged
Message:
city 14 ,hwy 19.8, composite average 15.8 all were done with A/C on. I have a 2001 Quad Cab 4X4 with the 4.7 and A/Trans.
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SA
Dodge Dakota
6/27/2001
22:54:35
| RE: 4.7L Mileage Sucks!
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Message:
Have an 01, 4x4, QC, 4.9, 3.9 diff, 5 spd. 8,000 miles, put a glasstite topper on and actually say mileage increase 2 mpg on the way home. Probibly 18 mpg now on avg.
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Tonic
Dodge Dakota
6/27/2001
23:14:03
| RE: 4.7L Mileage Sucks!
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Message:
The info on the website about aerodynamics states that with the tailgate down drag is decreased, but with the tailgate removed, drag is increased. So mileage would improve with a lowered tailgate. I would have to agree with that from prior experience also. It makes on average about a 1 mpg difference I would guess.
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ems66
Dodge Dakota
6/27/2001
23:37:19
| RE: 4.7L Mileage Sucks!
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Message:
The more miles I put on my 2001 4.7 the better it seems to be.....go figure
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JMII
Dodge Dakota
6/29/2001
17:44:17
| RE: 4.7L Mileage Sucks!
IP: Logged
Message:
Thanks for that link Dan!
Looks like the best way to improve mileage is to build an angled topper :o The
smooth, "egg" shape is the most aerodynamic and logically gives the lowest drag.
Lower drag = better mileage
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2kota
Dodge Dakota
6/30/2001
03:02:00
| RE: 4.7L Mileage Sucks!
IP: Logged
Message:
5.9, FT4x4 QC SLT 3.55 LSD
Last tank 8.9 MPG. Beat that ;)
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BB2DAK
Dodge Dakota
JOIN HERE
3/13/2002
16:35:29
| RE: 4.7L Mileage Sucks!
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Message:
I checked the mileage on my 4.7l and found the following:
Average mileage for the truck since new: 16 mpg
(calculated over 15,500 miles)
Worst Mileage: 13.3 mpg
(This was pulling a heavily loaded BoyScout trailer)
Best Mileage: 19.6
(Highways mileage on a 3 hour trip)
2001 Quad Cab SLT+ 4.7L, 5-Spd, 3.55 Lsd
ARE Cap, ArmaCoat Bed-liner, Pilot PILPL119X Fog Lights
Autolite 3923's, IAT Adjuster, K&N Drop-in w/modified intake
http://members.aol.com/bsbets/truck/intake4.jpg
http://www.dodgedakota.net/albums/viewer/101.htm
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Dave Mitchell
Dodge Dakota
JOIN HERE
3/13/2002
16:42:25
| RE: 4.7L Mileage Sucks!
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Message:
Mine averages 19MPG and I got 23.5MPG freeway with th etailgate off. PBulski must have the 4WD fulltime with automatic and 3.92 rear end.
Mine has 4.7L, 5-spd, 2WD, with 3.55 rear end and is a Quad Cab to boot....
Dave
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lilbigrig
Dodge Dakota
JOIN HERE
3/13/2002
17:10:16
| RE: 4.7L Mileage Sucks!
IP: Logged
Message:
My 4.7 dak averaged around 16.5-17 mpg mixed driving, this was with an early 2000 pcm. when i took it in at 28,000 to get the fan clutch fixed forgot tell them not to "update" my pcm. i now am happy to see 15 average, 14.5 is more like it. thing got better milage before the flash with the fan locked up and engaged full time.......
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Bill55AZ
Dodge Dakota
JOIN HERE
3/13/2002
17:38:15
| RE: 4.7L Mileage Sucks!
IP: Logged
Message:
5.2, auto, 3.55, club cab, 1995, and I get 16 city on 40-45MPH streets and 21 freeway (at 75mph average). So just what did we gain going to the 4.7? I heard they did that for better gas mileage to make the EPA happy and got added performance as a bonus, but now I am not so sure.
Can the 4.7 tow like a 5.2?
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D Denney
Dodge Dakota
JOIN HERE
3/13/2002
19:31:26
| RE: 4.7L Mileage Sucks!
IP: Logged
Message:
my 00 4.7 auto quadcab gets 17 mpg if i drive nice,15 if i drive normal.last tank i got a hair over 18 mpg only mod is mobil 1
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kawzx7
Dodge Dakota
JOIN HERE
3/13/2002
20:41:02
| RE: 4.7L Mileage Sucks!
IP: Logged
Message:
Same crap here lilbigrig. Hoping to get it back when I get it flashed at Mike Leach. I have heard good things about it. I have my 180 stat in now to reduce chance of detonation with the upped timing. I am getting 16 now that it's warmer(combined city/hwy). I get 17 or so strictly highway. Gotta keep it under 80. Hahhhaa.
Later
Chris
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JP
Dodge Dakota
JOIN HERE
3/13/2002
21:48:36
| RE: 4.7L Mileage Sucks!
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Message:
I know it is sometimes tough to get good fuel economy.....especially when you are having fun.. The 4.7 will do good when you get to OD and let the computer feed the engine in a "lean" mode. 20+ mpg. Otherwise accept that recreation has it's price.
JP '01 SLT+ CC 4.7 LSD AWD
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Patrick
Dodge Dakota
JOIN HERE
3/14/2002
01:05:39
| RE: 4.7L Mileage Sucks!
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Message:
I have a 5.2 4x4 CC 1997 55k and i get about 10mpg around town and 14 mpg on the highway. But I also live in West Virginia so there are hills everywhere. If I lived in arizona then i might get 16 all the time. Anyway im not going to complain since my truck kicks ass.
later
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drunkace
Dodge Dakota
JOIN HERE
3/16/2002
01:18:25
| RE: 4.7L Mileage Sucks!
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Message:
I thought my carb was outa tune because I get 13mpg on average on my 87 3.9 Auto....guess it's not too bad...???
OH... 10mpg trailer/20mpg @55mph/ and 11 mpg @ 75-80mph
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