Mpg display on dash at 11.8 - 12 mpg is this normal?

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Dib52

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The default setting on the truck is ON the minute you start up. Manually pushing the button disables O/D and you get the yellow light/icon on the dash telling you it's off. Leave it ON, no lights on the dash and you'll see some improvement. The only time I ever run around with it OFF is when I'm hooked up to the boat.
And as far as resetting the ave mpg, while on that screen in the instrument cluster, simply hold the reset button and it will clear.
 

toms89

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Please excuse my ignorance since I've owned manual cars since I was 16 so the o/d feature on this truck is something I've only use to pass someone quickly on the highway or when I'm going up hill and the truck seems like it needs to down shift a gear to climb and maintain speed. All other times I'm on flat land and I do not need to push in the o/d button so am I not using this feature in an economical way?

Overdrive is any gear in the transmission where the speed of the output shaft is spinning faster than the input hence the name. This would be 4th gear in the 4 speed transmissions. Not sure whats in your model year.

I believe what you are attempting to say is you are not turning overdrive off via the switch.
 
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Dib52

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Did you see a difference when you put in the k&n?

Hard to tell, modification on mine began at 200 miles off the lot. First I pulled the exhaust, then came the intake, then the programmer all in quick succession. With those 3 things and running stock suspension and tires, I saw as much as 22mpg while on road trips. Then I added the lift and 33's and mpg took a hit to the mid 18's on same road trips.
Do I recommend the K&N intake, absolutely! It will help. Best bang for the buck...programmer. Just makes it that much better to drive.
 

toms89

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The default setting on the truck is ON the minute you start up. Manually pushing the button disables O/D and you get the yellow light/icon on the dash telling you it's off. Leave it ON, no lights on the dash and you'll see some improvement. The only time I ever run around with it OFF is when I'm hooked up to the boat.
And as far as resetting the ave mpg, while on that screen in the instrument cluster, simply hold the reset button and it will clear.

Well said... :)
 

tojohnso

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I highly recommend reading the owners manual. I think you are missing a lot by not doing so. Yes, when you have the average MPG displayed, hold the reset button like you do when you reset the trip OD.

It sounds like your terms may be messed up in relation to "using the OD". I hope you are really saying that you only press the O/D button, which disables O/D and turns on the O/D off light, when you want to pass or going up a hill. Truth is, you should leave it alone unless you are towing something or you are on really hilly terrain and you notice the truck is shifting a lot.
 
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1mpg

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The default setting on the truck is ON the minute you start up. Manually pushing the button disables O/D and you get the yellow light/icon on the dash telling you it's off. Leave it ON, no lights on the dash and you'll see some improvement. The only time I ever run around with it OFF is when I'm hooked up to the boat.
And as far as resetting the ave mpg, while on that screen in the instrument cluster, simply hold the reset button and it will clear.

I guess my way of explaining my use of the o/d feature was just messed up... Ok so no O/D icon light on dash means its on not off and that's where I was confused since I thought that pushing the O/D (having icon light on) meant that it was "on" not "off". The lower the rpms are the less gas consumption so I've been driving it properly with the o/d "on" (no icon on dash) unless I'm trying to maintain speed going up hill then I would turn it off.

Toms89
The truck is a 2007 with the 6 speed auto tranny and yes sir you are correct I'm not turning off the O/D. Having the truck just a little over a month i havent been able to sit down and read the manual thoroughly, the only thing I know about it is that it takes me 3hours to wash/wax/vacuum/condition the seats and clean windows and it only takes a few minutes for the kids to get in and leave finger prints on the windows. The wife is the one who daily drives it unless we are together and I don't feel like clutching my way to the groceries or department stores we would take the expedition over my car. I guess while she's doing her shopping it would be a good idea if I sat down and read the manual for the truck and see what else I've been missing.

Dib52
To effectively install and get the most out of the tuner that you have or all tuners out there, does an engine needs modification like intake, better exhuast or can you see gains from no modifications on engine? Im old school familiar with modifying a car but have never chipped or used a tuner on any of my cars.
 

Dib52

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The tuner by itself will give you gains, not necessary to do more mods. However, any time the motor can breath better and expell better, the more efficient she'll run. That's why I combo'ed everything.
Most of the tuners on the market carry "canned" tunes for the general public. Normally, 87 tune, 89 tune, 91 tune, mileage tune, power tune, etc are the generic types. If you want to get really into it, places like 5star tuning(site sponsor) can hook you up with "custom" tunes based on how you plan to drive. For me, an off the shelf Hypertech was good enough and will be in most cases.
Biggest gain I see with mine is the smoother transmission operation. Before install, she would occasionally hunt for the right gear, lag, and just not feel like she wanted to get out of the way. Running 87 tune....all better. Sure, there's just a bit more power there, but overall drivability is improved.
Best part, simple install. Hook up to the OBD II port, answer some yes/no questions and let the tuner reflash the computer. Disconnect, and start enjoying the vehicle more.
 
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1mpg

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Thank you for the info you provided me with, I will definitely put a tuner on the to do list next to a cai. I don't see myself doing anything else to my truck other than later swapping out the stock 17's for something a little bigger since she looks good the way she sits.
 
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