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Should you delete 2017+ Powerstrokes???

Valid Reasons for Deleting 2017+ Powerstrokes???

12050 Views 42 Replies 15 Participants Last post by  659549
Hey folks,

So I have owned the 7.3, 6.0 and now a 2017 6.7L with 37,000 miles. We all know all the benefits to a full delete on the 6.0s, 6.4s and early 6.7s.

So the poll question is, should you delete 2017+ 6.7l Powerstrokes or not? If you vote, please share your perspective and hopefully real-life experience with this motor.

Like most, after purchasing the 2017, I immediately just ASSUMED a full delete would be needed to ensure long-term reliability. However, after researching the topic and looking at all of Ford's improvements in this newest 6.7l generation I have come to the conclusion that a delete is simply unnecessary. I am not seeing reliability issues related directly to the emissions on these trucks. So deletes, especially for low mile trucks (under 100k), seem to be more "fad" than a choice supported with evidence. Appears to me, that many guys/gals are simply making assumptions on the benefits due to prior year emission related issues (certainly for pre-2015 powerstrokes).

While I am no tree hugger, I also think retaining the emissions is the responsible thing to do for our environment, especially if the performance benefits are small or unproven and not quantified. Not sure if there is enough data available from 2017+ deleted truck owners at this point. I also use my truck strictly for heavy towing (15-25k loads), not for show boating, so my perspective may be different. I do plan on having over 300,000 miles on this truck with 10+ years of ownership. So if a performance mod will significantly improve engine life and reliability I want to do it. As such, my 1st mod was a Amsoil dual bypass oil filter system.

But I wanted to get people's perspective on this? I assume this is a highly debatable topic. It would be superb to hear opinions from professional diesel mechanics with years of experience on the newer 6.7s?
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Not arguing against the "traditional" justifications for a delete. However, in reality there is no imperial evidence that shows a WELL MAINTAINED (not hot rodded) truck in stock form = less engine life than a deleted motor. And BTW, I was always a fan of deletes, especially with older versions where the emissions systems where rather new (6.0 and 6.4 especially along with Duramaxs and Cummins, etc).

However, I would like to bring up some articles that argue or warn against it so others can look at both sides and make an informed decision. Also, the EPA is heavily cracking down on aftermarket tuners in just the last 2 years. Scares me a bit. Plus you do take a hit on aftermarket value if your truck is deleted (I dont plan on selling mine...driving it into the ground).

Some opposing articles that warns against it:

Overall, I completely agree with reasons why to delete. I am just not 100% anymore they outweigh the con's. And the EPA risk is becoming much higher as they crack down on aftermarket companies.

My plan is to sit and watch at least for another 30k miles or so. Let my warranty period end and see how these newer trucks are doing in stock form with 200k+ miles.
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Not sure about what the future holds but I am not looking forward to owning a silent tow truck! Down with Tesla!! 😁😁😁

I dont think the arguement for improved fuel mileage compared to the cost of a delete by a diesel shop makes any sense. The gains I see most people claim are about +2 mpg. Runs those a very long time to recoup that investment. You are talking about driving at least 200,000 to 300,000 miles before breaking even!! Especially considering that I bought diesel at $1.78 near Houston last week!! Really not a valid arguement IMO for a delete whatsoever considering JUST this factor. And remember, this turbos will almost certainly fail sooner with a delete due to fairly significant increases in heat.

Good discussion. Like I said, gonna wait for more 2017+ owners to be test subjects. It does seem to me that a great majority of people who support a delete, are not looking into the Engineering improvements made on the latest generations of 6.7s. My biggest concern is actually getting WATER in the injection system NOT my emissions. So I am adding a secondary Racor fuel filter / water separator. This is a $100 mod that makes total sense to me!!
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“The gains I see most people claim are about +2 mpg. Runs those a very long time to recoup that investment. You are talking about driving at least 200,000 to 300,000 miles before breaking even!!”

At typical fuel prices (let’s just say $2.89) it’d take bout 125,000 miles
to recoup $2,236

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Exactly, using those assumptions, that is still a lot of mileage IMO to break even. Now there could be other gains associated with fewer repairs. And those gains could be huge & is a huge justification for folks doing a delete. We all simply assume that a delete results in fewer repairs but this is totally unproven on 6.7s, especially the more modern generations. While on the flip side, you would need to consider the de-valuation of the vehicle in the used marketplace.

This is really a circular argument. I can easily see both sides.

The real debate which I don't think anyone can answer is if a DELETE truly results in fewer repairs & longer engine life. I always believed the theory in this for the 6.0 and 6.4. However, when looking for used 2014+ Powerstrokes......I was commonly seeing vehicles with 150K - 200K miles stock with very, very few repairs on CarFax reports. The data is there....someone just needs to mine it all!!

Anyway, I'm beating a dead horse at this point. Love to have a certified diesel mechanic or Ford mechanic chime in with their real-world experiences???? When I spoke with two well-known diesel shops near me (Malone Diesel and Dripping Springs Diesel), they both said that I would be wasting my money on a delete with a modern 6.7L. The failure rates are extremely low, especially compared to their predecessors. Just most shops would love to sell you a performance service such as a delete. Says a lot to me.
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@HeavyAssault man that is not that far away. At first it seems too optimistic. But Ford's alignment with Rivian could make a decade possible in the consumer market.

I consistently get at least 18 MPGs (hand calculated over several tanks) going back and forth to work and its all stock. On the hwy the best I have seen is 21 MPGs going 70-73 MPH at 1680-1760 RPMs. I don't turtle around and when I come from a stop I try to get up to speed and higher gears. But I am conscious of how I drive and try to adjust my driving to efficiency. If I was deleted I would probably get better mileage with the same driving habits though but not enough for me to pull the trigger
21 MPG is pretty impressive! I'm getting 18 MPG stock on mine but that's with a feather foot. If I was guaranteed to get 22 MPG on the highway, I'd probably go for a Delete. But problem is, in reality my truck is a work tow truck. And I don't think you'd see any different in tow modes. I certainly didn't in my 6.0 when towing. Now I gained about 2 MPG on a +75HP tune but towing risked my head gaskets so never did it. I would run a +30 HP tow tune which saw no MPG gains from stock.

I actually think that running water ethanol is the best solution for those of us that want to maximize towing performance. If I had kept the 6.0, this would have been my solution. I was constantly fighting EGTs with heavy loads.
Let’s just say there are no Benefits as to longevity; deleted truck will last as long as one not deleted (which is hard for me to believe). I pretty sure an egr and dpf will eventually fail maybe later than sooner but it will. So at that point it will be cheaper to deleted than to replace emissions components. So why not go ahead and delete sooner the payback should cover the cost long before the egr and dpf would fail if left on. Or leave it on get 2 mpg less and less hp and if you keep the truck long enough pay more to replace emissions equipment than you would to delete. Do whatever you want. To each his own.

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Harrell, you bring up a GREAT point. So my plan is to keep stock UNTIL I see issues with the existing emissions equipment on our trucks. BTW, I absolutely love the Banks Derringer system as a legal CARB complient tuning solution (Thanks '16 KRLB City Slicker

So it DOES make a lot of sense (ignoring the potential environmental harm & legal ramifications) to delete a truck that has failing emissions equipment. The parts will be cheaper (you removing most of them!) and no worries about future failures. Hopefully none of us see this for hundred of thousands of miles but I will SERIOUSLY consider yanking out my emissions when I run into reliability issues. Having said that, as a whole, my research shows very few failures in truck even with 150,000 - 200,000+ miles.

My guess is by the time this occurs with my 2017, the EPA will have eliminated illegal deleting across the US. It has already it or not.
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