Found out where the extra Diesel went

David G · May 28, 2018

I put the Banks tuner on my 2016 Super Duty about a month ago, pepped it up, but used more fuel.

The DPF filled up on me while doing a lot of town driving, had to take on highway to regenerate, I put the stock tune back.

Sprint 6 · May 28, 2018

Unfortunately, those tuners cause more problems than they help on modern diesels. Had a customer of mine have the same issue with a Bully Dog on a '14 Dmax, ran great, but the towing tune got it down to single digit mpg and he had to fill the DEF tank twice on a 1500 mile trip to Texas. Also caused the SES to come on and latch it at 55mph. He put it back stock in Texas, and got 12mpg with little DEF usage on the way home. He sent it back and they refunded his money.

jacksun65 · May 28, 2018

Nephew put a tuner on his Ram 3500. Just over 100,000 mi had to pull the cummins for blow by. Cylinder walls look like polished crome.

MT RON · May 28, 2018

Friend of mine like a lot of others had his new Dodge Cummins deleted then blew it up.17,500.00 later he has a new crate engine in it because the factory warranty was void.I guess if you have a lot of money it's ok.

JD Seller · May 28, 2018

David I do not recommend tuners on the more modern diesel trucks. What I have been doing and seems to work well on the 6.4 engines is to remove the entire factory exhaust and then I have a local fellow flash the ECM with a program that deletes the EGR and regeneration requirements. He leaves the fuel setting at the factory specs. So just a little more HP from a less restricted exhaust and seems to made the MPG go up 2-3. I think the engines will run longer without the EGR gases getting burned. Plus the motor not running HOT during the Particulate filter burn out.

I know your 6.7 is a totally different animal but the same thing can be done to it. Local livestock hauler has his done. He keeps all the factory exhaust an just reinstalls it and has the ECM flashed back to factory when he trades.

BarnyardEngineering · May 29, 2018

People, it takes fuel to make power. There's no free lunch, no magic involved. If you "pep it up" it's going to use more fuel.

Where people get this idea that they are going to get insanely more power AND better fuel economy, especially on these modern common rail systems with computers and sensors out the whazoo, is beyond me.

Oregon Tractor Jack · May 29, 2018

I agree that adding a tuner will not increase your mileage. When I bought my 06 Dodge I put one on. I only use it when I am driving an empty truck. When I am towing anything, it goes back to the stock settings. There has to be a little common sense that goes with using one of these. You can't just jack up the horse power and then run the H out of it and not expect some trouble. I'll bet the people that had trouble with them and blew their engines had the tuner set to the "Race" setting while pulling 25k lbs up a long hill. Boy they sure run strong, but not for very long...

OTJ

rlp in Co. · May 29, 2018

I just saw on the news that Cheyenne Wyoming passed a law that if you blow smoke from your diesel it is a $300 fine. I don't like it, but there it is.

Found out where the extra Diesel went

David G

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Sprint 6

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jacksun65

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MT RON

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JD Seller

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BarnyardEngineering

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Oregon Tractor Jack

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rlp in Co.

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