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Gopher
Dodge Dakota
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4/07/2008
12:50:03
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 Subject: better mpgs
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I want to get better MPGs out of my 2001 4door 4x4 360. what can I expect to get if I go from stock and add cold air intake dual exoust with all cats out with glasspacks in retaining stock manifolds. will do computer later.
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jasonc
Dodge Dakota
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4/07/2008
15:14:57
|  RE: better mpgs
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maby2-3 mpg.
running synthetic oil will help also.
run it in your motor,diffs,transfer case.
trans
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Gopher
Dodge Dakota
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4/07/2008
15:50:24
|  RE: better mpgs
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Thanks man! Any other suggestions?
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Kowalski
GenIII
4/07/2008
16:16:33
| RE: better mpgs
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Air up the tires.
Lead, follow, or get out of the way
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daddio
Dodge Dakota
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4/07/2008
16:37:22
| RE: better mpgs
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proper wheel alignment and driving habits. what kind of mpg are you getting now?
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Gopher
Dodge Dakota
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4/07/2008
16:51:08
|  RE: better mpgs
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I'm getting about 15 hw
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daddio
Dodge Dakota
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4/07/2008
21:37:49
| RE: better mpgs
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i wish you luck in your quest for better mileage. have you checked the O2 snesors lately? any codes stored? how many miles on her?
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Bob Lincoln
Dodge Dakota
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4/08/2008
08:11:20
| RE: better mpgs
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Removing catcons will not help at all. Lift your right foot more often - it's the cheapest (free), most effective mod with no installation time or tools required.
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Gopher
Dodge Dakota
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4/08/2008
10:35:53
|  RE: better mpgs
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there has to be some way to get an 01 dakota QC 4x4 with 360, to get better mpg than a 1991 ex cab, long bed Z71 with 350 and 280,000! The Dakota only has 112,000 on it.
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daddio
Dodge Dakota
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4/08/2008
10:44:32
| RE: better mpgs
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better look at the upstream O2's. check for vacuum leaks. to get better mileage you'll have to make sure it is in top tune. some state that with a Superchips tuner on the 87 octane program do get a little better mileage.
that QC 4x4 w/ 5.9 is a beast of a truck for weight. you could also try changing tire sizes.
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Gopher
Dodge Dakota
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4/08/2008
10:50:54
| RE: better mpgs
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what size would you recomend? and its all good under the hood and the guy at the shop that hooked up the comp said that I might try cutting the wires on the O2,s and short them to each other to fool the ecu.
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daddio
Dodge Dakota
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4/08/2008
10:59:09
| RE: better mpgs
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what size tire are you runnning now?
"the guy at the shop that hooked up the comp said that I might try cutting the wires on the O2,s and short them to each other to fool the ecu."
i do have a recommendation on the above statement though. find another shop.
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Gopher
Dodge Dakota
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4/08/2008
11:07:27
| RE: better mpgs
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265/75/16
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daddio
Dodge Dakota
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4/08/2008
11:35:24
| RE: better mpgs
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looks like you've got the proper size tires. with 112k i'd change the upstream O2's. install some NGK/NTK brand you can buy them direct @ www.NGK.com.
not the same vehicle but let me give you an example. my sons '93 Saturn was getting about 25mpg (by the way that is very low mpg for that car)so i checked the O2 sensor and it was dead. installed a new one and average mpg went to over 32mpg. almost 40mpg hwy. thats 7mpg right there. you wouldn't see that much of an increase with that 5.9 but thats about a 36% increase in mpg. if you get 36% increase of your 15mpg hwy. that would put you at 20mpg.
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Gopher
Dodge Dakota
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4/08/2008
11:54:51
|  RE: better mpgs
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You can bet I will be looking in to that!
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Gopher
Dodge Dakota
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4/08/2008
12:01:43
| RE: better mpgs
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Super class or Reg class?
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daddio
Dodge Dakota
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4/08/2008
12:03:25
| RE: better mpgs
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"Super class or Reg class?" HUH?
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Gopher
Dodge Dakota
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4/08/2008
12:32:28
| RE: better mpgs
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The NGK O2 sensors come in two classes super is $57 each and the regs are $25 each or so.
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Gopher
Dodge Dakota
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4/08/2008
12:36:49
|  RE: better mpgs
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The fact that I live a half mi. off the dirt road may no be helping. that is also why I need to take out the cats, they start pasture fires.
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daddio
Dodge Dakota
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4/08/2008
13:29:07
| RE: better mpgs
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go with the super class as they are OEM replacements. the regular class are universal and will require you to cut and splice the old connector from you factory O2's. the front O2's are the ones the PCM uses to determine fuel ratio. the downstream ones tell the PCM that the cat is working.
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Gopher
Dodge Dakota
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4/08/2008
14:06:36
| RE: better mpgs
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I was hopping you would say the cheap one are better. What about cleaning the plunger in the back of the throtle body? I only have vaige details on this prosidure, does it realy help? and is it something a shaid tree machanic should be trying?
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