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TuckerLdlow
Dodge Dakota
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8/31/2008
00:34:39

Subject: Halo plugs & MPG
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Just to comment on a couple old posts about plugs, without dragging up all the discussion .....

Larry had recommended Halo plugs if you could afford them, followed by NPKs or E3s (after they fixed their problem), and then the APs. I value his opinion, as well as the opinions of several other long-timers on this board.

I'd run APs ever since I got my truck, and that's been almost six years now. I had a little extra dinero last month, and sprung for a set of Halo's. And didn't see a darned bit of improvement in my gas mileage! Of course, I wasn't really going anywhere - just urban driving for almost the entire month. Still, I'd expected a LITTLE improvement in city MPG.

I was on the verge of pulling them out and shipping them back, thinking I'd take advantage of their 30-day moneyback guarantee, when the wife announced that it was time for her to go see her Ma. So, I took her on a road trip to Virginia over the weekend.

The danged Halo's really kicked in on that road trip, and gave me the best mileage I've ever gotten out of this truck - 24.8 for the trip, and that was running 70MPH most of the way. I noticed that the inside of my tailpipe isn't flat black like it used to be, either, which implies that the truck is running leaner.

I'm keeping 'em!



kool
Dodge Dakota
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8/31/2008
09:43:44

RE: Halo plugs & MPG
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nice info
and for any of the new guys
its NGK's FR4 stock
FR5 1 range colder (helps stop pinging)



Dan M
Dodge Dakota
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9/01/2008
14:11:07

RE: Halo plugs & MPG
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I ran halo's in my 02 QC 4x4 auto for a while and never saw any real improvements in mpg. I never did long road trips except driving to mountains on fishing/camping trips which required a lot of low speed driving and braking.

Last tuneup i went to E3s because they were on sale and my local advance carries them. I have not seen any improvement with them either.

Larry says if you don't see an improvement you have something else wrong (sensor or maybe computer). The only issue i have is my truck revs when cold at idle. I get 2-4mpg better than my buddies 03 quad cab and I have extra weight on my truck (fiberglass shell, skid plates, tool box). I don't think it's a computer problem. I swapped oxygen sensors, map, iac, tps. Next to swap is coolant temp when i flush/fill it and change hoses.

- Dan M







harry from ct
Dodge Dakota
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9/01/2008
19:46:07

RE: Halo plugs & MPG
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are you kidding me....u must be new here.....stock truck, stock plugs,,,halos did nothing for you...thats forsure.....did you eat lead paint chips when you were a kid?...stick to stock plugs..autolites ngk, no champions...you wasted your money.....i love that line ..did you eat lead paint chips when you were a kid? Just funin with ya.......If you do the mods..Ya need the plugs...Glad to see a new commer!!! Ask and you shall recieve!



wadak
GenIII
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9/01/2008
21:47:53

RE: Halo plugs & MPG
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Tucker Ldlow,

What were you gettnig before taking your trip?



92 and 97 Daks both with many mods.

DakotaDog
Dodge Dakota
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9/02/2008
07:53:03

RE: Halo plugs & MPG
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Truck is running leaner with Halo Plugs? What year is it? If you've got a Fuel injected truck, there's no way Halo plugs are going to make your truck run leaner - the computer adjusts the mixture to be 14.7:1, unless it's malfunctioning.

More likely you just blew the carbon out driving 70MPH instead of putzing around town. There's a lot of things that can affect your gas mileage - head or tail wind, temperature, grade of gas, oil change, tire inflation, driving technique, traffic etc. One thing that isn't going to affect it is Halo Plugs. Just expensive snake oil. I had a set of them and returned them - they didn't do anything better than the plain old NGK V-powers I replaced them with.

Your best bet for gas mileage in these trucks is to reduce friction. Change your oil, tranny fluid & differential oil over to synthetic, put a little extra air in your tires, narrower tires, make sure your brakes aren't dragging. Shift into neutral at stop lights and going down hills if you can do it safely. Pulse and glide. Reduce weight - take all of that stuff out of your truck you aren't using, run on 3/4 or half a tank of gas instead of full.

If you still can, I'd say you're better off returning the plugs & replacing them with cheaper ones. Don't waste your money on expensive "mods". You'll never recoup your costs. I'm saying this from personal experience.

You'll do all your mods, you won't see results, then someone will tell you to do this high falutent test or that high falutent test which you don't have equipment for and you'll have to spend $400 to get, or pay a mechanic the same. Even if you did the tests, you'd probably find nothing wrong, or if you did and fixed it, it would probably get worse mileage.

The trucks are designed to operate within a very narrow range of fuel mixture which is optimized for emissions, not mpg. Welcome to the club, you own one of the most poorly designed trucks on the road for mpg.




pete
Dodge Dakota
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9/02/2008
09:42:41

RE: Halo plugs & MPG
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Dakota dog, last paragraph you posted says its all!! no plug, no mod anything of sort will give you any gain in mileage these trucks.... not to be a smar!ass but truth is out there.... If wanted fuel mileage you bought the wrong kind of transportation...



TuckerLdlow
Dodge Dakota
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9/02/2008
13:51:44

RE: Halo plugs & MPG
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Wadak - 16-17 urban, 21-22 road. If you and Dan want to have serious exchange about the Halo's, let's go to Members Only (if I can remember how to get in there).



dakota49
Dodge Dakota
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9/02/2008
20:13:02

RE: Halo plugs & MPG
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I have the Halo's and I don't think they were a waste of money, I have faster starts than I did with Autolites, runs smoother, and better gas mileage. I've had the Halo's for over a year and glad I got them.
Good Luck
Dakota49
1988 3.9 4X4 5speed



Bob Lincoln
Dodge Dakota
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9/03/2008
08:23:02

RE: Halo plugs & MPG
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So, TuckerLdLow, your Halo plugs that offered no change in city driving, knew you were doing highway driving and suddenly "kicked in" to give you better mileage? Please explain how that works. 8)



well
Dodge Dakota
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9/03/2008
10:34:12

RE: Halo plugs & MPG
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thats easy they have micro processors built in



wadak
GenIII
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9/04/2008
21:02:07

RE: Halo plugs & MPG
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Bob,

I think what Tucker meant by the plugs kicking in was the computer programming adapting to the more efficient combustion.

Wadak

92 and 97 Daks both with many mods.

Bob Lincoln
Dodge Dakota
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9/05/2008
08:38:00

RE: Halo plugs & MPG
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Well, since he drove for nearly A MONTH with no improvement, it can't be that. It doesn't take that long to re-learn. Placebo effect.



nope
Dodge Dakota
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9/05/2008
14:25:40

RE: Halo plugs & MPG
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Your wrong once again Bob. It would depend on how many miles he is driving. The pcm can go anywhere from 250 - 500 miles. The highest % coming in right around 300.



TuckerLdLow
Dodge Dakota
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9/07/2008
00:02:51

RE: Halo plugs & MPG
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Bob,

I think that both Wadak and Mr. Nope hit it on the head. One wouldn't think that changing plugs would require a reset of the PCM, but once I belatedly read the installation instructions, they said to reset it. And of course, the plugs were already in and I said to heck with that! So yeah - it probably WAS exactly as Wadak stated. I'm still not seeing any improvement in urban driving, but then again, I can't go more than a mile without having to stop for a light or stop sign. It rarely gets into OD around town.



harry from ct
Dodge Dakota
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9/07/2008
01:51:38

RE: Halo plugs & MPG
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once again for all you newbies...or oldies............ob2 computers use stock plugs...or autolites...no champions....unless u did the mods



Bob Lincoln
Dodge Dakota
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9/08/2008
08:26:27

RE: Halo plugs & MPG
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"Your wrong" Go back to first grade - "you're wrong". Illiterate.



awwwww
Dodge Dakota
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9/08/2008
09:24:43

RE: Halo plugs & MPG
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poor little bobby
it seems some one got him a little upset
did they hit a nerve there bobby??????



LOL
Dodge Dakota
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9/08/2008
09:27:03

RE: Halo plugs & MPG
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what happened Bobby
mommy didn't let you put sugar on your corn flakes this morning?



Placebo
Dodge Dakota
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9/08/2008
10:03:04

RE: Halo plugs & MPG
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here bob have an AFFECT on this



J and J Auto
GenII
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9/13/2008
02:35:54

RE: Halo plugs & MPG
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Ponder this one

Injector sync

I put the 196/205 fedral mogal cam in my 95
actualy its a 92 motor the org motor has a stroker
crank and is sitting in my garage right now

With the 1.7 harland sharpe roller rockers it
specs out more like 200/210 with a .460 lift

I also used a cloyes true street roller chain and
gears

Not even thinking about it until months latter
I had the sync set at 0 and I kept getting 22.5
22.4 always the same after aprox 10 mileage checks
It finaly dawned on me

The stock cam opens 8 before TDC the hotter cam
opens around 12 BTDC

I than remembered that I had just set it at 0
so I changed it to +6 and made the same trip
of around 180 miles, same roads, same speed but
this time I got 24.45 the temp and humidity,
humidity was the same, raining but it was
about 5 degrees cooler that day, the cooler temps
should have droped the mileage

This just shows you that having just 1 pyramider
off can effect gas mileage a lot, I gained a solid
2mpg from just the injector sync setting

95 4x4 all the mods and bolton's and I am running
the E3 but I did index them with the open part
of the ground strap at 12 o-clock

If your truck is running leaner with this type
of plug tells me that it is not adding the fuel
to compensate for the better burn

When crusing the A/F ratio trys to maintain a 14.7
ratio under ecelleration it will richen up to more
of a power ratio

I have also been testing the halo's in the marine
I/O boats we work on a lot of boats at the shop

The ski nautecs with the 351 windsor motors from
just a set of halo's and the MSD 8.5 wires all
gained 1 to 1.5 mph speed from just changing the
plugs and wires these boats do 45mph

One we also put a set of comp cams 1.7 roller rockers and an MSD box on and this boat will do
51 52mph and just blows all the other nautecs
away off the line and top end

This particular boat is also coming back for a
offenhauser dual port 360 intake manifold the customer wants it to do 55mph

If these mods do not work why is this happining
gaing 500 to a 1000 rpm on the top end

Now the 400hp fuel injected 350 small block
chevy chris craft I think builds these are gaining
a solid 2mph from the same plug and wire change

And you do not to spend any money to see if your
A/F ratio is right all you need to do is read
your plugs

As I have said a million and 1 times now

Your plugs need to be a light tan color or
something is not right

When a motor runs lean the efficancy is down and
both mileage and power will suffer they have to
be tan

I have had the dealers around here tell people
that a white plug is normal, that is an outright
Lie

This is where low power and the ping starts
comming in

Chryslers answer
1 change to the truck plug which is about 1/2
range colder and in a lot of the cases this will
eliminate the ping and help power and mileage
when a motor has piston ping you are losing
around 20%

2 if 1 does not work than they retard the timing
to eliminate the ping what this does is leave
you with a gutless wonder that sucks gas like
a pig (like the presidential race) a pig with
lipstick is still a pig. The Death Flash

I had a few trucks like this checked all sensors
with scanner and they appered good, ran an
occiliscope and the wave forms were ok but the
o2 sensor wave form was running a lower peak
voltage and what it was, to much resistance
internaly in the wire harnas from the sensor to
the computer

it can also be in 1 of the 3 wires, ground,sensor
voltage or the signal wire

There are 2 splices in all 3 of these wires
between the sensor and the computer and ground

However chrysler will not remove the covering
and undo the harnas to corect the real problem
it just takes to much time and would end up
costing the customer a couple 1000 dollars in
labor

so they took the easy way out sure it will not
ping any more and only takes a 1/2 hour

Its just putting a band aid on and sending you
home with a gutless gas sucking wonder

As I have also said many times I wish I could
take a look at all your trucks that have low
power and bad gas mileage and I am sure I would
find the real problem

Look at it this way, Mr A and Mr B are neigbors
and they both go and buy same year exact same
option trucks, both have exactly the same mileage
on there trucks use the same oil and buy there gas
at the same station. both also drive the same way

Mr A gets 24 mpg
Mr B gets 14 mpg

Would you not say the mileage should be only like
2 or 3 mpg diff not 10

something is not right with Mr B's truck he takes
it to the dealer and is told nothing is wrong

Well than why does his neigbors truck get 10mpg
better than he does

Ponder on that for a while, this happens every
day with all the manufactures

One Needs To Ask Why do they not

Larry
J&J Auto

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