Mileage Test
Super Moderator
Joined: Aug 2003
Posts: 25,479
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From: Isanti, MN
You must have the 1 LOM that actually works then, every one of them I use over states mileage by 1-3mpg. I left the mileage alone in my Mustang for 12K miles and it was consistently 1-1.5 over. The dealer reset it and it has taken a few hundred miles but is back to its normal 23.6 area.
I can make the 6.4L read up there above 30mpg if I reset it at the right times, going down hill with a tailwind for example. In reality it gets 11-16 on the LOM which is usually 2 over actual mileage.
Posting Guru
Joined: Jul 2005
Posts: 1,006
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From: San Jose, CA
I never reset my LOM, and it appears that it displays a running average of the last thousand miles or so... mine currently sits at 14.5 and it fluctuates +/- 0.2mpg or so depending on where/how I'm driving or what it's doing with regens.
If it take it for a couple of straight 250mile station-to-station freeway shots from what it says today, it'll gradually hit 15mpg+ even tough my hand-calcs show 18mpg. As soon as I get home and resume my normal driving, it'll slowly drop to the low/mid-14's over the next several tanks.
If you asked me, the LOM is not too far off an running eyeball average of hand-calc'd numbers over several tanks. It's good for entertainment purposes otherwise. I think people read too much into it.
If it take it for a couple of straight 250mile station-to-station freeway shots from what it says today, it'll gradually hit 15mpg+ even tough my hand-calcs show 18mpg. As soon as I get home and resume my normal driving, it'll slowly drop to the low/mid-14's over the next several tanks.
If you asked me, the LOM is not too far off an running eyeball average of hand-calc'd numbers over several tanks. It's good for entertainment purposes otherwise. I think people read too much into it.
Postmaster
Joined: Nov 2006
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From: SE Wyoming
Guess my point was these pictures I see on this site of the LOM reading 25+ are meaningless as I can do the same thing under the above situation but it is not the actual mileage over a full tank. My guess is a 2wd reg cab can't even get 25+ over a full tank, in stock form of course. I'd even be skeptical about 20+.
Hotshot
Joined: Nov 2000
Posts: 11,591
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From: Pflugerville, tx
Hi Sam,
...
The numbers are reasonably accurate for the time period used for the average. If you hook up your trailer and drive for another tank and see 11.1, that means your truck should have gotten 11.1 over the course of the previous unloaded tank and the one towing. Meaning if you add the mileages together and divide by the sum of the gallons used you should see somewhere around 11.1.
...
The numbers are reasonably accurate for the time period used for the average. If you hook up your trailer and drive for another tank and see 11.1, that means your truck should have gotten 11.1 over the course of the previous unloaded tank and the one towing. Meaning if you add the mileages together and divide by the sum of the gallons used you should see somewhere around 11.1.
Sam
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Well, we finally arrived in Vacaville, CA today. We dodged tornadoes in Missouri, boredom in Nebraska, antelope in Wyoming, Mormon in Utah and gamblers in Nevada.
The aFe did not help at all for mileage. In fact, I believe I lost miles per gallon after the install.
The Borla did not help either as it was installed past the DPF.
The Banks Ottomind did not help mileage. It changed shift points in "sport" mode. That cost mileage. It did not help in "tow" mode. There was no difference in mileage with the tow program activated compared to stock tow mode. I did not feel any horsepower gains with the Banks "tow" mode either. The best thing about the Banks is that it clears the 2002 trouble code that the aFe leaves.
I should have left well enough alone and kept everything stock.
The aFe did not help at all for mileage. In fact, I believe I lost miles per gallon after the install.
The Borla did not help either as it was installed past the DPF.
The Banks Ottomind did not help mileage. It changed shift points in "sport" mode. That cost mileage. It did not help in "tow" mode. There was no difference in mileage with the tow program activated compared to stock tow mode. I did not feel any horsepower gains with the Banks "tow" mode either. The best thing about the Banks is that it clears the 2002 trouble code that the aFe leaves.
I should have left well enough alone and kept everything stock.
Super Moderator
Joined: Aug 2008
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From: Frederick, MD
I will tell you this about programmers, just my opinion.
They are good for economy and for lite towing...5-6K area.
When you tow heavy all else goes out the window. In fact you are much better off towing very close to stock when towing heavy.
I drop mine down to stock when I tow any distance as well and run on the ecomony setting when empty. It has served me well thus far.
I am never in the shop with any engine issues and mine runs perfect...isn't that what we are all after?
Mine is dependable enough to drive cross country loaded down to 24K right now if I wanted to.
They are good for economy and for lite towing...5-6K area.
When you tow heavy all else goes out the window. In fact you are much better off towing very close to stock when towing heavy.
I drop mine down to stock when I tow any distance as well and run on the ecomony setting when empty. It has served me well thus far.
I am never in the shop with any engine issues and mine runs perfect...isn't that what we are all after?
Mine is dependable enough to drive cross country loaded down to 24K right now if I wanted to.
Senior User
Joined: Mar 2006
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Well, we finally arrived in Vacaville, CA today. We dodged tornadoes in Missouri, boredom in Nebraska, antelope in Wyoming, Mormon in Utah and gamblers in Nevada.
The aFe did not help at all for mileage. In fact, I believe I lost miles per gallon after the install.
The Borla did not help either as it was installed past the DPF.
The Banks Ottomind did not help mileage. It changed shift points in "sport" mode. That cost mileage. It did not help in "tow" mode. There was no difference in mileage with the tow program activated compared to stock tow mode. I did not feel any horsepower gains with the Banks "tow" mode either. The best thing about the Banks is that it clears the 2002 trouble code that the aFe leaves.
I should have left well enough alone and kept everything stock.
The aFe did not help at all for mileage. In fact, I believe I lost miles per gallon after the install.
The Borla did not help either as it was installed past the DPF.
The Banks Ottomind did not help mileage. It changed shift points in "sport" mode. That cost mileage. It did not help in "tow" mode. There was no difference in mileage with the tow program activated compared to stock tow mode. I did not feel any horsepower gains with the Banks "tow" mode either. The best thing about the Banks is that it clears the 2002 trouble code that the aFe leaves.
I should have left well enough alone and kept everything stock.
You wanna tune? Do it with the DPF DELETED, period. The DPF is a MAJOR restriction in the flow of motor, and it doesn't matter what you do to the intake, the exhaust from the DPF back, or the tuning, if the DPF is still there, it's THE biggest part of the problem...
My buddy ran his Spartanized F350 with a DPF-on tune (150 RWHP) and the difference between it then and now with the DPF deleted, particularly as far as mileage is concerned, is day and night, never mind the power. Don't care what anyone says; when it comes to tuning the only way to do it right is with the DPF OFF!
FWIW, YMMV!
Fleet Owner
Joined: Jul 2006
Posts: 20,347
Likes: 802
From: Mi'kma'ki
Yeah, it will do that. Based on 10 years of diesel trucks and FTE time, I would say you've really done nothing to increase your mileage. A pipe behind the DPF has no impact, the obstruction is the DPF. The intake does nothing for you if the exhaust (DPF) can't pass the increased air flow. Only deleting and tuning will help with this truck.
So, let me share with you my three part plan for dealing with fuel mileage in my 2008 DRW with a 4.30 Differential. 1. Added an after market Titan 60 gallon fuel tank to increase time between fillups. 2. Never look at the numbers on the fuel pump, keep head down until fill up is complete. 3. Never read the reciept from the pump. tear it off and either stuff it in your pocket or hand to wifey for filing. And, when asked about mileage by someone just smile smugly and say: "if you're on a budget you should consider a Ford Ranger". Of course none of that improved my mileage but my attitude is better.
So, let me share with you my three part plan for dealing with fuel mileage in my 2008 DRW with a 4.30 Differential. 1. Added an after market Titan 60 gallon fuel tank to increase time between fillups. 2. Never look at the numbers on the fuel pump, keep head down until fill up is complete. 3. Never read the reciept from the pump. tear it off and either stuff it in your pocket or hand to wifey for filing. And, when asked about mileage by someone just smile smugly and say: "if you're on a budget you should consider a Ford Ranger". Of course none of that improved my mileage but my attitude is better.
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Freshman User
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This is one of those "I told you so" type posts; I don't like making it, but if the shoe fits...
You wanna tune? Do it with the DPF DELETED, period. The DPF is a MAJOR restriction in the flow of motor, and it doesn't matter what you do to the intake, the exhaust from the DPF back, or the tuning, if the DPF is still there, it's THE biggest part of the problem...
My buddy ran his Spartanized F350 with a DPF-on tune (150 RWHP) and the difference between it then and now with the DPF deleted, particularly as far as mileage is concerned, is day and night, never mind the power. Don't care what anyone says; when it comes to tuning the only way to do it right is with the DPF OFF!
FWIW, YMMV!
You wanna tune? Do it with the DPF DELETED, period. The DPF is a MAJOR restriction in the flow of motor, and it doesn't matter what you do to the intake, the exhaust from the DPF back, or the tuning, if the DPF is still there, it's THE biggest part of the problem...
My buddy ran his Spartanized F350 with a DPF-on tune (150 RWHP) and the difference between it then and now with the DPF deleted, particularly as far as mileage is concerned, is day and night, never mind the power. Don't care what anyone says; when it comes to tuning the only way to do it right is with the DPF OFF!
FWIW, YMMV!
The correct answer to my query at that point would have been to leave well enough alone (stock) unless I was prepared to DPF delete.
Everything you said your post in this thread was correct.
I just removed the aFe and reinstalled the stock air filter. Gonna recheck mileage by hand calculating. I should have my results in a few days. My initial numbers, however, indicate the aFe was a detriment to mileage.
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pilgrimbizket
1994.5 - 1997 7.3L Power Stroke Diesel
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Feb 8, 2016 07:45 PM
