I've owned a 6.7 for 3 years now and other than regular maintenance (oil changes, filter changes) I don't have additional service concerns or expenses. Yes....there is risk with higher expenses if something should fail (e.g. DEF system, etc) but I'll cross that bridge when and if it happens. I will say that for the 6.7, that maintenance is key as well as using good fuel. Water in the fuel system and you'll be faced with a $10k repair bill. So I use high volume fuel dealers and have always used additives like Ford's PM-22A and Standadyne's Lubricity Additive in each and every tank.

 

Most of what people run in to with the added cost of diesel is that the fuel is more expensive, the maintenance of them for anything built after 2002 roughly is a bit more particular, and in many states the registration and insurance is higher. Those are just a few things that right off the bat is going to be something to consider to the true cost.

 

Not sure where you live but in my neck of the woods diesel is much cheaper than regular in the summer and more in the winter. So it evens out as about the same as regular.

 

For my 6.7L is regular maintenance...oil changes, fuel filter changes.....not to mention filling the tank.
Since new (Sep 2014) I've spent $23,324 in fuel for 166,997 miles tracked, 355 fill-ups averaging $65+ per fill up. Fuelly shows that is a $0.14 per mile cost.
If someone could show in fuel costs that running a gasser is cheaper please show us. I'm not saying diesel is cheaper, but I doubt a gasser is going to save you 50% per mile.

I will say if you don't want to see those kinds of numbers, don't track your expenses....LMAO......

 

For my 6.7L is regular maintenance...oil changes, fuel filter changes.....not to mention filling the tank.
Since new (Sep 2014) I've spent $23,324 in fuel for 166,997 miles tracked, 355 fill-ups averaging $65+ per fill up. Fuelly shows that is a $0.14 per mile cost.
If someone could show in fuel costs that running a gasser is cheaper please show us. I'm not saying diesel is cheaper, but I doubt a gasser is going to save you 50% per mile.

I will say if you don't want to see those kinds of numbers, don't track your expenses....LMAO......

I'm at roughly 1/3 of your total miles on my '17 and I'm showing $0.16 per mile. I'm averaging 17 mpg overall, but I'm down about 1 mpg from last year. I think the new rubber I put on maybe partly to blame. I also changed tunes a few times and I'm lost as to which one I liked the best for mileage. They don't name them very well on the EZLynk.

By comparison, my Ranger is at $0.14 per mile, but that's only for about 12,600 miles. My Explorer was at $0.12 per mile for the 4,500 mile trip I recently took. The Focus that I recently sold was at $0.07 per mile for the 36,000 miles I tracked it.

As far as other costs, so far, it's only been general maintenance for the '17, if you don't count the cost of Weight Watchers'.

 

@G8orFord : Those numbers show some real data to digest. We know over time the average cost per mile will go down, but there's other factors that play into it dropping. I wish I could flip around between lots of tuning files to see what happens, I'm stuck with what I got at this point. I can't see any reason to adjust tuning since the truck does anything I ask. Not to mention it can surely out drive me.

 

These are some great numbers look at and digest. It makes me realize how bad i'm slacking in comparison on keeping track of things. We all know of a truck that has failed in an expensive way prematurely, but it seems like i'm looking at some of these trucks that are now 3-4 years old, with around 80k - 100k , and there's not much difference in price between a 6.2 and the 6.7 and often times the 6.7's are better taken care of. I just want to make sure i'm not missing something. I have no issues spending 2k on reducing the emissions equipment if it gets me closer to a relatively trouble free 250k + life expectancy.

Being relatively new to the 6.7 boards, is it a common theme to see these trucks make it to these types of miles without major issues outside of regular maintenance and possibly some emission equipment? Hopefully i'm not beating a dead horse too bad.

 

Well basically every part is more expensive. Fuel is more expensive. Twice to three as much oil capacity every oil change, plus all filters are more expensive, especially fuel filters that basically never get charged on a gas, get changed every other oil change on a diesel. If you have an injector or pump problem, which is more likely with a diesel, it's going to cost you 10x more than a gas injector or pump. The only cost savings is fuel economy.

All that said, if you can get over that, they're much better engines to run every day, better power, better longevity. Diesel can and usually do run hundreds of thousands of miles with no problems, but if you do have problems, which can be random and completely not your fault, be ready to get out your checkbook.

 

I haven't looked into the longevity of a 6.7 in great detail yet but with the 7.3 it was not unheard of to get 400,000 miles out of the motor. Again I'm not familiar with the 6.2 but 400,000 miles out of a gas engine is not that common. From what I have gathered the 6.7 is living up to the 7.3 reputation with longevity. So that is another thing to look at. Just total life of the motor. If you only plan to keep it to about 200,000 though this may not be a factor. But if you are going to keep it till it dies. Especially if you can delete you could potentially get double miles out of a 6.7 vs a 6.2 motor. Im not sure but I believe the 6.2 also has the 6R trans so that will be the same with either truck.

 

For every horror story about the X.XX motor, there are 10,000 success stories.
Just sayin....

 

And you never hear about the positive stories

 

I got to eat so......LMAO

 

I'm a big diesel fan even with the Tier IV final. you will have extra expenses for maintenance and fuel as well as DEF unless you delete. The 6.7 is miles ahead in performance especially with towing or hauling. It all comes down to your preference. Do you want a Gas or Diesel. It's more about preference than trying to create a tangible list.

 

I appreciate everyone's feedback. I will continue to search, and am leaning pretty hard towards the 6.7. There will be a high likely hood that i will want to delete the truck, but that will be a different post as i learn more about the pro/con list.

 

What did you end up going with? If you went with the 6.7 hows it going so far? Are you glad you made the choice you did?

 

@husky10101 I'm in West Central MO. Since the pandemic has hit the fuel prices have gotten much better around here and I have actually seen diesel cheaper than gas again for the first time in a decade other wise diesel has been about 30 cents higher the past 6 months to before that almost 70-80 cents higher.

 

Tracking my expenses for the last 38 months/ 41K miles;

The total maintenance cost of ownership has been 14.0 cents per mile. This is just maintenance, not fuel, insurance, or mods/accessories. The biggest chunk (40%) of that has been a recent total front end rebuild at 313K.

Mixed driving (city /hwy /towing /empty) fuel costs (relatively short tracking period, but representative overall) has been 17.3 cents per mile. (I tow 10K about 15% of the time)

Insurance costs 5 cents per mile (higher business use rate).

Total operating cost is $0.363/mi

Now the real cost of a PSD is in the mods/ accessories/ personalization/ wants list: That has been another $0.10/ mile and climbing! LOL

(edited maint cost calc error)

 

We’ve seen similar price drops here. It was explained by a refinery friend that they’re making less jet fuel now (more refined diesel) so there’s a glut of diesel, expected to last a few years while air travel is cratered by Covid.

 

Can second this in the VA area. Recently I've been able to make jokes about diesel prices being fairly reasonable/static, while gas prices move every which way.

 

2006 6.0L went 289k with the original injectors, modded it, studded it....ran and pulled with no concerns. Never had a major failure. All work was preventative.
2015 6.7L 176k no issues of major concern.....modded, runs just about every day. HWY driven quite a bit....

+2 positives....You heard it here.