| From | Message |
BadMoFo
Dodge Dakota
JOIN HERE
10/23/2003
12:44:18
|
 Subject: Gas Mileage
IP: Logged
Message:
I got a '03 CC and I use the AC a lot...my overhead thing usually is around 11.4 on the city...17 on the highway with cruise control being used often. Oh yeah, it's a 4.7 V8. Is this normal?
|
AndrewM
Dodge Dakota
JOIN HERE
10/23/2003
14:21:57
| RE: Gas Mileage
IP: Logged
Message:
That's pretty low compared to mine. I have a 02 QC 4.7 auto w/ 4.10 LSD. Around town I average about 15 on the overhead console and about 19 on the highway at 75 mph.
You must have a heavy foot.
|
BadMoFo
Dodge Dakota
JOIN HERE
10/23/2003
14:24:22
| RE: Gas Mileage
IP: Logged
Message:
Do you use AC constantly?
|
ammdak
Dodge Dakota
JOIN HERE
10/24/2003
17:59:49
| RE: Gas Mileage
IP: Logged
Message:
You are similar to me. I'm really disappointed in my 2003 QC V8 3.92 auto gas mileage. Only 11.5 in mixed city/hwy and 17 in pure highway. I don't have a heavy foot. In fact, I have really been babying it to see what happens. I'm at 3500 miles right now and reading up here on the options to get things a little better.
|
Matt
Dodge Dakota
JOIN HERE
10/24/2003
19:55:01
| RE: Gas Mileage
IP: Logged
Message:
Your gear are definantly hurting your gas milage...get some 355's or something and it'll definantly help out.
|
Frank
Dodge Dakota
JOIN HERE
10/25/2003
08:05:40
|  RE: Gas Mileage
IP: Logged
Message:
I think Matt's on to something. I have a 2000 CC 2WD 4.7L 5speed with a 3.55 rearend and routinely see 22 mpg on the highway, no $hit. I have 94,000 miles on my truck and have used pure Syntec 5W-30 exclusively since I bought it new 3-1/2 years ago. I think the the low gearing and auto is hurting you guys. However, I have a couple of friends with 2WD 3.9L 5 speed Daks that get as low as 15 - 16 mpg, so who knows.
|
dasman7580
Dodge Dakota
JOIN HERE
10/26/2003
11:20:07
|  RE: Gas Mileage
IP: Logged
Message:
Mine is the same way. I've got a 00' 4.7 RC 4x4 with 31's and 3.92 gears. Around town I get about 12 and on the highway I get about 17. I live in Texas so I drive around 70-75 on the highway and TRY to stay off the gas.
|
BobbyD
Dodge Dakota
JOIN HERE
10/26/2003
13:14:14
| RE: Gas Mileage
IP: Logged
Message:
2002 4.7 QC 4x4
I get about 13.5 in town, that's with daily KC rush hour and I hate being in the slow lane. Hiway milage has been as high as 18 while averaging about 70/75 mpg, but as low as 14.5 driving into a heavy headwind to Des Moines last winter.
While the milage might suck, it's my only complaint about the truck. Put in a K&N airfilter this morning ... hope that helps a little.
Will adding a "fake" duel exhaust effect my mileage? By fake I mean, single muffler that splits into to exhaust pipes? I've been told by a few auto parts stores that's the way to go in the Dak because of the lack of space under the truck to get two mufflers and cat. converters. Thoughts?
|
BadMoFo
Dodge Dakota
JOIN HERE
10/30/2003
19:29:58
| RE: Gas Mileage
IP: Logged
Message:
How do you change the gearing? Also, what benefit does the poor gas mileage gearing offer?
|
MD
Dodge Dakota
JOIN HERE
10/30/2003
21:53:24
| RE: Gas Mileage
IP: Logged
Message:
Your mileage, BMF, is in the normal range - I would suggest you not rely on your computer to accurately reflect your mileage. With a full tank drive it a 150 to 200 miles, and then fill it. Note how many miles you've driven and how many gallons it took to fill it up.
I have a 2000, 4.7 auto, 2wd, running 4.10 gears. I get about 13 or 14 in town, and between 17 or 18 on the road.
What gears do you have and what size tires are you running. Frankly, I'm not a fan of 3.55's with the 4.7 - 3.92 or even 4.10, are much better all around gears, even though they might cost you a mile or so per gal on the road.
Changing gears? The cheapest way to change your effective ratio is to go to a larger or smaller diameter tire.
MD
|
fastdak
Dodge Dakota
JOIN HERE
11/01/2003
23:47:43
| RE: Gas Mileage
IP: Logged
Message:
4.7l rc 5 speed 3.92 lsd. 17mpg in town 21-23mpg on the hwy. k&n fipk only mod.
|
mikeb
Dodge Dakota
JOIN HERE
11/02/2003
00:23:53
| RE: Gas Mileage
IP: Logged
Message:
BadMoFo,
Here's the poop in changing the gearing. You can go two ways, new or used (if a used set can be found.) New will cost a couple hundred for parts, twice that if you have a 4X4. Throw in the same for labor. By the time you're done bet you'll be 500 or more in the hole. If you're going the used route, parts price varies, but labor will be the same as above. Don't skimp on the labor! Poorly installed gears will self destruct very quickly! Now my opinion: Leave the gears alone. First, if you tow you'll be unhappy with the loss of power. Second, the cash you'll pay for new gears will pay the difference in gas for years to come, and if they aren't installed correctly it can only get uglier...
|
99Dak5.2L4x4
Dodge Dakota
JOIN HERE
11/03/2003
10:33:01
| RE: Gas Mileage
IP: Logged
Message:
I wish I could get 17 - 20 mpg like most of you.
I avg 11 mpg in the city and 14 mpg on the freeway. I got 3:55 gears and 32 inch tires. I think at best even when the truck was new, I only got like 16-17 mpg on the freeway. I'm fixing to roll 100,000 miles this month hopefully, the engine lasts another 50,000 miles.
Bill
|
Demon Dakota
DakotaEnthusiast
11/03/2003
14:21:36
| RE: Gas Mileage
IP: Logged
Message:
I get 16+ in town and 20+ on the highway, depending mostly on whether or not the A/C is on...
The worst I've ever gotten in 14.89 MPG, but that was right after a ton of mods and an ECU reset...
True Dual exhaust and removed third cat
HO Cams & HO Intake
FASTMAN 70mm TB
Autolite 3923 Plugs
TPS @ .76 VDC
IAT Adjuster Mod
Custom tranny VB Mod
Demon long tube headers
Ported/polished heads w/ 1.92" Intake/1.60" Exhaust Valves
One dead stock LSD unit (POS...)
|
skitter
Dodge Dakota
JOIN HERE
11/04/2003
03:41:00
| RE: Gas Mileage
IP: Logged
Message:
you would think a lighter, but stronger engine would get get better gas milage. lower gears in the rearend increase the gas milage on the ohc motors for some reason. my dak jumped up to 21mpg when i put in 4.10s. the same happened on my 96 mustang when i put 4.10s.
|
AmsoilSponsor
DakotaEnthusiast
11/04/2003
06:36:22
| Amsoil Synthetic Lubricants & Gas Mileage
IP: Logged
Message:
Fuel economy can be very difficult for the consumer to accurately gauge. If you fill up at a warmer part of the day one week compared to the previous week you can sometimes see a huge fluctuation in MPG just based on that. Also, the pump may have stopped pumping sooner this week compared to last, making it "seem" like you used less (or more) gallons of fuel.
It has been proven by Amsoil (and other leading oil manufacturers and suppliers) through use of industry accepted fuel economy tests, field demonstrations (and as witnessed by most of our customers), that switching to synthetic oils and lubricants can (and does) improve fuel economy (mpg).
Also, you did not mention what oil viscosity that you are currently using. Depending upon your driving habits, conditions, and climate ... switching viscosities can improve fuel economy also. I've observed a MPG increase when switching grades (5w-30 compared to 10w-40).
Tighter government regulations and increases in engine manufacturers’ demands are calling for more fuel efficient lubricants. Amsoil Synthetic Motor Oils reduce friction and drag better than petroleum oils, resulting in significant fuel economy increases. In a recent 1.2 million mile demonstration, AMSOIL Lubricants showed a 4.5% increase in gas mileage. Other tests have shown increases of as much as 15% under certain weather and driving conditions. Yet, because every vehicle is different, as are driving habits and conditions, it is difficult to accurately project an exact increase.
__________________________________________________
VISCOSITY - A discussion since WINTER is upon us.
VISCOSITY..in the general term is defined as " a fluids resistance to flow". it's a measure of the internal friction of the fluid or the resistance to the movement of one layer of molecules relative to an adjacent layer.
THE LOWER (SMALLER or FIRST #, as in "10w-_) NUMBER.. is the Cold Cranking measurement, made at low temperatures, using a concentric cylinder viscometer to predict the oils cranking resistance in an engine during cold starting.
The measuring devices, or viscosmeters, most often used are in the form of close-fitting concentric cylinders. The fluid being evaluated is placed between the cylinder walls, the outer cylinder is held stationary and the inner cylinder is rotated. The speed of rotation is measured for a given force to calculate the viscosity, most commonly reported in cp or centipoise units. Also known as Absolute Viscosity.
THE HIGHER (BIGGER or SECOND #, as in "-30") NUMBER...is commonly measured in capilary tubes, in which the time for a fixed volume of fluid to flow through the tube under gravity at operating temp (100c)is measured and reported as cSt or centistokes. This is used most commonly to report the normal operating viscosity of motor oils or the higher number.
-----
" 0W- " is a viscosity GRADE, not a viscosity MEASUREMENT.
When testing for cold fluidity, the temperature is lowered approximately 5 degrees centigrade between each test.
The Cold Crank Simulator Apparent Viscosity is tested at:
-20 C for 10W-
-25 C fpr 5W-
-30 C for 0W-
It is my understanding that the oil has to be labelled at the lowest temperature it meets the specifications.
It may not be long before someone comes out with a " -5W-30 " which would correspond with -35 C.
__________________________________________________
Request a FREE Amsoil Catalog by clicking the following link.
Steven Roark , Amsoil Dealer , Proud Sponsor of www.DodgeDakotas.com
AMSOIL Synthetic Motor Oils, Lubricants, Filtration, and Truck Care Products
|
Ron
Dodge Dakota
JOIN HERE
11/27/2003
12:42:56
|  RE: Gas Mileage
IP: Logged
Message:
Got an 03 quad cab with the 4.7L
Just got back from the dealer. Im getting 12.5 city and 13.5 hgwy @ 70 mph with 7300 miles on odo. They said they checked the error codes (none) and all the sensors (fine). When the truck was new I was getting 14.5 all around even towing and loaded. The mpg took a dive the last couple thousand miles. Dealer said yeah the dodges dont get very good gas mileage? Its really hurtin the wallet.
Any suggestions?
|
GraphiteDak
GenIII
11/27/2003
14:04:22
| RE: Gas Mileage
IP: Logged
Message:
I average around 18 MPG highway which is usually driving up and down the mountains from Phoenix to Payson and back. I drive between 75 MPH and 90 MPH the whole way with some occasional "passing slow people like the wind" when I have to.
I always check it by reseting the ODOMETER at fill up. Then Filling it the next time and checking against the miles driven. I don't have that overhead display dealy. It's the only thing I think my truck doesn't have.
I did remove my clutch fan and I only drove it to the mountains one time so far after that. I was nice to it on the way home and got at least 19 MPG. So I guess a 4X4 is capable of getting descent mileage.
Anyway. I understand that it is normal for my truck so I'm not bitching. Now the City mileage us a different story. But I drive totally different in the city!
|
Jimmy
Dodge Dakota
JOIN HERE
11/28/2003
00:09:04
| RE: Gas Mileage
IP: Logged
Message:
Lower gears will help it around town since it takes less energy to get it up to speed. at highway speeds, it may decrease or increase mileage depending on the state of tune of the engine, manifold vacuum, etc. i drive my '68 mustang for gas milage a lot and the 2.73's get me phenominal mileage when cruising (approacing mid-20's on the freeway with a mildly built, carbureted 302), but crappy city mileage. overall, id say get lower gears; it'll help out on the responsiveness, and the mileage won't be too adversely affected.
|
Floatpilot
Dodge Dakota
JOIN HERE
11/28/2003
00:45:24
| RE: Gas Mileage
IP: Logged
Message:
I have a '03 Quad Cab that looks likes Graphitedaks without the mods, just a K&N. I just did a 314 mile trip and used roughly 19 US gals / 16 IMP Gals. so that gives me around 17 US mpg / 20 IMP mpg. These numbers are so dependent on your environment outside. For my trip, it was 0F/-18C and the road was completely snow covered, and the wind varied through out the trip. I did not engage the 4X4 for the trip and I did not use the cruise control. 17 US mpg may not sound all that great, but for the conditions of that day, I am not complaining. I have done other trips in nicer conditions that resulted in around 20 US mpg / 23 IMP mpg.
|
GraphiteDak
GenIII
11/28/2003
12:52:34
| RE: Gas Mileage
IP: Logged
Message:
In the snow, that sounds like excellent mileage.
Hey Jimmy. I had a early 80's fox body mustang. CHEAP car to build. I built a 302, stock bottom end, different heads, a pretty big cam, single plane intake and a Holley Double pumper. Even after I changed the dual plane intake for a single, it still ALWAYS got over 20 HIGHWAY MPG. It actually saw close to 25 a few times. I remember at the time (early 90's) I was getting better mileage than what the brand new GT's stated on the sticker. And my car was a sh*t load faster too!
Not bad for over 300 HP and occasional 7000 RPM revs! Now the city mileage was another story. Couldn;t keep my foot out of it and it average 10 MPG or so. Oh yeah, it had 3.08 rear gears.
|
| | P 1 |
|
Post a reply to this message:
Username Registration: Optional
All visitors are allowed to post messages
|
