What is the Best Mileage MPG PROGRAMMER ? - Page 2 - Dodge Cummins Diesel Forum
98.5-02 Performance Parts Discussion Discussion of Performance Parts For the 98-02 Trucks No Advertising ...NO ADVERTISING

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post #13 of 22 (permalink) Old 02-11-2017, 03:07 AM
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If you want 30+ mpg buy an EcoDiesel.


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post #14 of 22 (permalink) Old 02-11-2017, 03:53 AM
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I would recommend a Jetta over a ecodiesel. Why get 30 when you can be getting 50-60+.

2000 Ram 2500 QCLB-Quadzilla Adrenaline, FASS Titanium 95 GPH, 4 Inch Diamond Eye Duals Donalson M090544, BHAF, MoparMan Crank Case Vent Mod, NV4500 swap, SB3250-6, DAP 7x0.010, 4th Gen Center Console, Optima Yellow Tops, DAP HD Pushrods

FIL - 07.5 Ram 2500 Megacab - Ctrl Alt Deleted/ 97 Ram 3500 2wd dually, remote fuel filter, Jacobs exhaust brake

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post #15 of 22 (permalink) Old 02-11-2017, 10:49 AM
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You guys are lucky I'm excited to see over 15mpg on the highway or in town and I never drive my truck hard either but I didn't buy a 7000# truck for fuel economy
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post #16 of 22 (permalink) Old 02-11-2017, 01:06 PM
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Seems like you could pretty easily do better.
My hand calculated (not from the overhead "lie-o-meter") average on my last tank was 15 mpg and that was pretty much all slugging to work and back in horrible rush hour traffic, in a 4x4 dually. That even included about 50 miles in 4-Hi in the snow.

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post #17 of 22 (permalink) Old 02-11-2017, 03:51 PM
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Originally Posted by MitchB View Post
You guys are lucky I'm excited to see over 15mpg on the highway or in town and I never drive my truck hard either but I didn't buy a 7000# truck for fuel economy
No kidding
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post #18 of 22 (permalink) Old 02-11-2017, 09:06 PM
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Originally Posted by Monstermaker View Post
Seems like you could pretty easily do better.
My hand calculated (not from the overhead "lie-o-meter") average on my last tank was 15 mpg and that was pretty much all slugging to work and back in horrible rush hour traffic, in a 4x4 dually. That even included about 50 miles in 4-Hi in the snow.
How far off are the lie-o-meter? Because that's what I'm going off
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post #19 of 22 (permalink) Old 02-11-2017, 09:47 PM
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Way off. I don't even look at it.
Always calculate your own MPG, the overhead panel thing is very well known as entirely unreliable.
And if you've made any mods at all, it's completely moot.

'99 QC 4x4 Dually, Quadzilla not wiretapped, DAP 150hp VCO7x.010s, HX35, 47RE triple disc billet everything, lockup switch, 4.10s, Gear Vendors OD, Kelderman Air Ride, Alcoas, 4" pipes, BD brake, Fass Titanium 95, Hellwig sway, steering brace, airbags
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post #20 of 22 (permalink) Old 02-12-2017, 03:15 AM
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My overhead says 30+ mpg. Actual is in my sig.

2000 Ram 2500 QCLB-Quadzilla Adrenaline, FASS Titanium 95 GPH, 4 Inch Diamond Eye Duals Donalson M090544, BHAF, MoparMan Crank Case Vent Mod, NV4500 swap, SB3250-6, DAP 7x0.010, 4th Gen Center Console, Optima Yellow Tops, DAP HD Pushrods

FIL - 07.5 Ram 2500 Megacab - Ctrl Alt Deleted/ 97 Ram 3500 2wd dually, remote fuel filter, Jacobs exhaust brake

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post #21 of 22 (permalink) Old 02-12-2017, 12:18 PM
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Originally Posted by MitchB View Post
How far off are the lie-o-meter? Because that's what I'm going off
They can be off by a little or a lot based on the tire size and power modifications. The overhead is basing its calculations on factory parameters and is incapable of detecting anything aftermarket on the truck. So therefore because 99% of people dont have factory size tires or run factory power, the overhead is typically not accurate enough to bother using.

Hand calculating is best but really using the tripometer is not 100% accurate either, even with stock size tires. The best way is to calculate using a GPS. If you need to be any more precise than that in maximizing fuel mileage.....you bought the wrong vehicle.

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post #22 of 22 (permalink) Old 02-12-2017, 05:13 PM
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What would be the best programmer to buy for the best MPG ? Anyone?
I personally like the Smart S03 tuner. Then again I'm biased and have only had this tuner so far. I went from about 19MPG to 22MPG on the highway. Has timing added so it also has a bit of get up and go on the fuel saver mode when you need to pass or have a bit of fun.

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