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Discussion Starter · #1 ·
I am interested in getting a programmer for my new to me 2005 qclb 4x4 dually. I dont really care about being able to smoke the tires, or beat a corvette. Just want some better fuel economy. I have read about people getting a lot better economy when using programmers, but would like some real world opinions from some of you who have already done it.:confused013:
 

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Stock, will work fine.
 
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Stock, will work fine.
That's pretty accurate. I use my Smarty Sr. to fuel down lower and enhance the driveability. The best fuel economy I've ever gotten has been stock by a slight margin. Smarty stays on for the driveability factor. Driving south on the Grapevine recently without Smarty required 5th at one pt(camper on) compared to 6th with Smarty. EGT's with Smarty are lower by 150*,but unfortunately I've never seen an increase in fuel economy.

I think Smarty's the only programmer out there for the reliability and driveability enhancement.
 

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My current sig truck went from 13.3-14.5 (hand calc) to 17.5-19.4 (hand calc).
Stock to the mods shown in the sig.
Real world day to day, daily driver.
The difference in each range is wether I'm commuting or on the road.
Forgot NEVER believe the overhead lie-o-meter when checking your (or anyone else's) mileage!
Hand calculated mpg only need apply.
 

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Discussion Starter · #6 ·
My current sig truck went from 13.3-14.5 (hand calc) to 17.5-19.4 (hand calc).
Stock to the mods shown in the sig.
Real world day to day, daily driver.
The difference in each range is wether I'm commuting or on the road.
Forgot NEVER believe the overhead lie-o-meter when checking your (or anyone else's) mileage!
Hand calculated mpg only need apply.
I'm hand calculating approx. 16-17 mpg rolling stock, and driving like a grandpa. I guess I'm doing alright.:banghead:
 

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I gained 1-2 mpg using a bullydog programmer set on the tow/economy tune.
The performance tune is supposed to give the best mpg, but it seems about the same. It adds 60 hp and 100 lbs torq, make it alot more responsive too.
 

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tuner/mpg

I'm hand calculating approx. 16-17 mpg rolling stock, and driving like a grandpa. I guess I'm doing alright.:banghead:
Don't have to drive it like a grandpa, the biggest geath to mileage I've found is running over 2k rpm on the highway. RPM up fuel gauge down, at about the same speed too!
 

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mpg

Remember, I'm driving a 3500 with drw. Takes a little more dedication spinning those extra tires in order to maitain economy
Aha, the dead truck in my sig '03 QCLB, 4x4, auto, HO, dually got about 1/2 mpg less than what I'm getting on my '04 SRW. QCLB, HO, auto, 4x4.
Basically the only difference between the '03 and '04.5 is the DRW and the (factory) tune difference between the '03 and '04.5 (cam) piston bowl and injectors (number of events and pattern).
 

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The best "programmer" for fuel economy is between your ears. Fix the nut loose behind the steering wheel, and amazing things can happen.
 
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predator, cheap effective and seems to improve the most mpg
 

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I run a bone stock truck. Numbers in sig. The addition of a tuner might advance the timing a little which would/might be a good thing for just mpg. But that must be weighed against premature wear on other systems. SmartyJR on default/factory setting is the one most recommended around here; check.

Look up Tone Ring Mod (free)

Look up ROKKTECH Timing Sensor (cheap)

And maybe try them to experiment.

Up to 50-mph the biggest impediment is rolling resistance. Tires are huge: highway rib, LRR-rated is best.

Past 60 mph aerodynamic resistance is key: Bed cover, grille block, other changes that can help.

What won't help: aftermarket CAI, bigger exhaust, leveling kits, etc.

Start by taking truck to the best shop to check: alignment (perfect, not just okay); zero brake drag (not just "barely"); and CAC system integrity. Steering wander is a mpg killer, so check for play and eliminate.

Fresh filters and synthetic fluids (meeting factory spec).

In short, get the truck into the best possible mechanical shape, and use factory spec as the guide to work from.

Do a title search around here under: "mileage" "milage" "mpg" "economy"

Learn to plan the truck use. The best route (not necessarily shortest), the best rpm range, etc. Start up the use of records: every gallon.

Use the overhead readout: The smartly-used Meter

In short, the expensive little box isn't the answer. It's a piece of it. Truck condition, truck use (smart planning) and owner skill (smart driving) are the rest. Whatever you spend against the truck has to be paid before fuel economy really begins. Once you no longer care what the herd around you is doing, you're on the right track.

.
 

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keep in the highest gear poss.. the rpms low and wind resistance at a minimum.

that means roll at about 15 to 1700 rpms. on hwy. dont push it to maintain speed up a hill, let the speed bleed a little coast down hill as much as poss..

keep you tire pressure at rec.pres.. yes follow a simi at safe distance and let him cut the air for you.

drive like you have all day to get there.

decell sooner.
yes, put a freer flowing filter/tube on.
freer flowing exhuast.

oh i almost forgot powerserve and tha best diesel fuel you can find. i hual fuel for a living and after years of it have learned from labs the the clearer the fuel the better it burns.
delivered diesel to the military ant they require a minimum clearity test before they would except diesel or jet fuel.
the clearer the better the greener it looks the more water and suspended particulats it has in it and the worse it burns.
my be a tuner.
hardest street rubber for tires. you wouldn't believe how much tire compound makes a diff in mileage with proper pressure.

thats the cheap stuff.
 

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with my 35s aired up and my power puck set at 90hp doin 1800rpm down the road at 73mph I was getting right at 24mpg today, now thats fla and flat as a board road, and my other mods in my sig, and lucas fuel additives in fuel, the lie o meter said i was getting 28mpg man i wish that was real, O and my new falken wild mountain tires have a hard rubber so im sure that helped too, and im not runnin 4,10s any more
 

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Bed Cover

Myth Busters did an MPG test with a bed cover. It did not increase mileage in their test, it decreased it. I don't know the exact numbers, but it would be easy to find. I bought one for my last truck and did not see any increase at all. I have had people tell me that adding a bed cover increased their mileage by 3 mpg. If that was possible, I think that the big three would include a bed cover. Think about it, 3mpg would be a huge selling point for the cost of a bed cover, if mass produced.
I get about 18-19 mpg on the highway. The mileage setting on the Edge does not help. 3 is probably the best setting. I have tried driving at 1800 rpms and got about 20mpg, but no more. I run Michelin LTXs , stock height. I don't think 20+ mpg is possible for my truck at any speed. I am east of the mountains, the terrain is flat like Kansas.
When I lived in Northern VA, DC area, I got 14-15 mpg in constant stop and go traffic. But, I did have to utilize a heavy foot to get around all the Toyota Prius owners.
 

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The best "programmer" for fuel economy is between your ears. Fix the nut loose behind the steering wheel, and amazing things can happen.
now that thar's funny but sadly true.:hehe:

or put a Prius engine and battery in your Ram/Cummins.:rof:thumbsup:
 
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