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don
Dodge Dakota
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9/27/2004
15:29:26
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 Subject: increasing gas millage???
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does anyone have any suggestions for increasing gas millage, i just installed a 180' stat and my millage went down.. i have intake and throttle body spacer, and suggestions to increase my fuel economy???
relocating the IAT sensor?
thx, -don
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99bludak
Dodge Dakota
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9/27/2004
17:42:54
|  RE: increasing gas millage???
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If you search, you will find unlimited suggestions on this topic. Some of the most common are: plugs, new intake, opening up the engine (more free flowing intake and exhaust), synthetics, moving IAT, P&P on TB and Intake, etc. Some of these make a difference, some don't, everyone has their opinion. I say, pick something you want to try, something cheap preferably, and try it. If it works, great, if not, go back to the way it was. The fact is these engines like gas. They aren't made for family vacations across the country, so you can't expect 30mpg. On the other hand, there are simple things that you can do to increase your mpg slightly. Just be careful that you aren't spending much more on the mod then you will save in gas. Sometimes you can end up with something that will take you several years to recoup the costs. That's my .02 anyway...
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Dr. D
Dodge Dakota
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9/27/2004
20:16:44
| RE: increasing gas millage???
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Three things that work well.
1). AMSOIL Synthetic Lubes and AMSOIL FlowzAir Air Filter
2). Electric Fans
3). Pulley Underdrive Kit
Dr. D
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Timberwolf
GenIII
9/27/2004
20:25:47
| RE: increasing gas millage???
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No matter what I do, my mileage still sucks. I think I've traced the problem to my right foot. I think the only thing that would help me would be mounting a block on the back of my gas pedal.
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Don
Dodge Dakota
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9/27/2004
20:47:34
| RE: increasing gas millage???
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Message:
ha, thx for the replies...
heres a list of my mods
airaid intake, poweraid throttle body spacer, exhaust, underdrive
crank pulley, chip, removed that rubber piece close to the
radiator, and now the 180' stat.... i had awesome millage for a
lifted truck till i added the stat, now i think i have lost at the
least about 2-3 miles per gallon, now w/ that said... any ideas
floating around there???
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Dr. D
Dodge Dakota
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9/28/2004
06:56:02
| RE: increasing gas millage???
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Put the factory stat back in there and start using the synthetic oil
that I mentioned earlier if you are not already doing so.
Dr. D
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don
Dodge Dakota
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9/28/2004
15:23:02
| RE: increasing gas millage???
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thx dr. d, but im gonna continue w/ the stat only because i need
the added horsepower, living in az its nice to have the added
power especially getting on the freeway... if u have ever visited
az u know what i mean. im gonna add a tonneu cover wont add
much but it will help. ive been using synthetic oil ever since my
first oil change (moble 1 synthetic), so i guess theres nothing
else i can do... thx for the replies!
-don
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Dr. D
Dodge Dakota
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9/28/2004
17:44:31
| RE: increasing gas millage???
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Don,
Years ago I used Mobil1 too and then I tried AMSOIL. The
vehicle that I used it in (1987 D-150) got much better fuel
economy with the AMSOIL.
Dr. D
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Jag
Dodge Dakota
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9/29/2004
22:25:39
| RE: increasing gas millage???
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MSD ignition systems make a difference as well as synthetic fluids all the way around.
I have gotten 15.5 city in my R/T
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PARDONMYDUST
Dodge Dakota
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10/02/2004
18:22:28
|  RE: increasing gas millage???
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MY 94 DAKOTA 4X4 EXTENDED HAS A 52MM FASTMAN THROTTLE BODY
MOPAR PERFORMANCE ENGINE CONTROLLER(COMPUTER)
14" X 3" K & N FILTER
GIBSON HEADERS HOOKED UP TO A 3" Y PIPE 3" CATALYIC CONVERTER AND 3" FLOWMASTER EXHAUST
HURST 5 SPEED
AUBURN POSI LIMITED FRONT AND BACK
MSD DIGITAL-6 IGNITION
ALUMINUM RADITOR W/180 THERMOSTAT
AND BOSCH PREMIUM OXYGEN SENSOR
AND IF I KEEP THE PEDAL OFF THE MEDAL AND CRUISE DOWN THE HIGHWAY @ 70 I GET JUST OVER 21 MPG
PARDONMYDUST
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TexasTodd
Dodge Dakota
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10/02/2004
19:16:15
|  RE: increasing gas millage???
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Don, you didn't say what it was you were driving, or maybe I just missed it.
Are you trying to tell me, that you can feel a HP increase from a 180 T-stat. I did the 180 stat years ago. I did it cause of no belt cultch/fan on my 4.7, and overall the engine life should be better.
BS flag being waved on the added HP, sorry
It you have the dual fan set up factory, loose the belt driven fan/clutch. Then you'll feel an actual dynoed increase, albeit, a small one.
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stinky dak
Dodge Dakota
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10/02/2004
23:02:02
|  RE: increasing gas millage???
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Where do you find under drive pulleys for a 2003 CC 4X4 4.7 auto?? I've been looking around and cannot find anything cept for the 5.9. I don't how many people read this and are from Canada, so any help would be greatly appreciated. AND NO SMART ASS COMMENTS PLEASE>
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don
Dodge Dakota
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10/03/2004
02:05:04
| RE: increasing gas millage???
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stinky dak, i dont know where ur gonna find one for a 5.9 '03, i
was lucky enough to find one for my '01 3.9 but you could try
www.truckperformance.com thats where i got my pulley and i
have had great service using them. AS TO MY HP INCREASE,
POOR CHOICE OF WORDS --- I MEANT I FELT A POWER INCREASE
AND THAT MY TRUCK RAN SMOOTHER, NOT A HP INCREASE... IM
NOT THAT STUPID, BUT THX FOR POINTING THAT OUT THO!!!
SHOWS EVERYONE ON HERE THAT YOU ARE SMARTER THAN ME,
CONGRATS. i had no idea so many people would read this post,
thx again for the replies.
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matt
Dodge Dakota
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10/06/2004
01:56:58
| RE: increasing gas millage???
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Message:
simple. don't step on the gas pedal. or buy a honda. ride a bike. this Increase MPG question is asked too often..... ITS A TRUCK .... Gas prices SUCK.... we're ALL SUFFERING... Try driving a 5.9... I only drive my R/T maybe 5 minutes to work and some weekend cruising, still goes through gas like theres no tomorrow.... BTW< that throttle body spacer does NO GOOD for (at least) the 5.2 or the 5.9... ever seen the underside of the intake? its a huge gaping hole. and no fuel goes into the TB< so it's not helping keep anything especially cooler.
rant over, sorry....
ON a honest side, its a pure trade off. all those mods that IMPROVE performance and drop weight, if done properly and used EFFECTIVELY ( if you can keep yer Damned foot off the gas) can improve fuel econoomy, if you don,t use em properly, you've not only spent money or parts, but also more on gas too. stay away from higher lift cams, of course, but other mods like a tranny cooler for automatics can imporve tranny life and performance, and insures decent Fuel economy, roller rockers, Polishing the TB, AND FOR GODS SAKE MAINTAIN IT!!!!@ oil changes, spark plugs, etc... all the things that degrade an engine or the vehicles mechanical parts over time.....I see so many cars a day that just simply arent maintained, and all that affects MPG, ALignment is a pretty big one (think about it, if your front tires are dragging due to improper alignment, then is wasting gas) ..tires, Suspension components like tire rods and the shocks and stuts, condition of the transmission, tire pressure, ya get muh point!?!?!?! NOT just the engine alone affects MPG.......
sorry, I'm fresh outta work, and a bit hyped up... I had a guy lower an alignment rack with a Licoln on my foot earlier, I'm in a lill' pain....
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rgathright
Dodge Dakota
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10/07/2004
10:37:55
| RE: increasing gas millage???
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Here is an idea, Mofinwiley recently put the Keiser 6 speed in his truck and he can now get 26 MPG on the highway in 6th gear.
Why? Gear Ratios.
Wanna save gas and not spend a fortune on a Keiser's extra gear? Put a 2.78 Rear end in your 4.7L Dakota. These trucks make tons of torque down low so they can take it, I drive my 4.7L in 5th gear at 35mph all the time just for kicks.
Now you say... oh I want to tow with my truck to, then ditch the truck and get a Saturn.
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TexasTodd
Dodge Dakota
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10/07/2004
14:49:45
| RE: increasing gas millage???
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Message:
don, chill.
I guess I should have put it this way. When I went to a 180 t-stat on my 4.7 manual tranny, years ago, I really couldn't feel any difference.
I guess my but dyno isn't as sensitve as yours
:-)
I mainly did it when I took off my belt clutch/fan, so it would run alittle cooler anyway, which is usually a good thing.
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HotDog88GT
Dodge Dakota
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10/13/2004
20:45:07
| RE: increasing gas millage???
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Message:
After reading everything here regarding improving mileage on the 4.7L V8 engine it's probably true that lightening the truck is the only way to improve things drastically. My 88 Mustang 302 gets 18-20mpg with 3.55 gears. Of course, it's only 3200# versus much more for the QC.
14/18 is the sticker for my 2004 Quad Cab. I travel 15 highway miles one way to work at 70-75mph in 2WD. The rest is small town driving in Central NY.
Some stats:
2266 miles driven on 7 tanks of gas:
Avg: 14.3 mpg
Best tank: 15.45 (tail gate down)
Worst tank: 13.39 (towed 2800# part of tank)
No tonneau
No sythetics
Stock air filter
Next comes a tonneau cover and Amsoil synthetics for the engine. Amsoil for the tranny and gear boxes will come before winter. Hopefully I'll get a few thousand more miles in before I start towing the sleds around.
I'm not going to blow $$$ on parts to get my mileage up. The majority of my driving is highway and I'm nowhere near 18mpg because those numbers come from Dodge tests at 55mph (I believe).
It's a truck. Mileage sucks. Get another famliy vehicle with 30+ mpg that can balance out your gas consumption overall.
P.S. FACT: lower temp thermostats cool your engine but gas consumption goes up when you do this. Better life for the engine, though.
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Quad Rider
Dodge Dakota
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10/15/2004
21:36:24
| RE: increasing gas millage???
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Switch to synthetic oil at your next oil change.
Ride On !
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Gravity
Dodge Dakota
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10/21/2004
15:03:04
|  RE: increasing gas millage???
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I just make it a point to drive down hills instead of up them...
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