toesmack

Looking at getting a newer truck, but have a hard time letting go of my 01. Looking for an '06 or '07 5.9. Also possibly thinking about a 2012 or newer 6.7. Have heard a lot about emissions control problems and poor mileage on the 6.7 engines. I live in one of only 2 counties in Nevada that have annual emission inspections, so deletes will not be an option. I do have a friend with a 2016. Towing identical trailers with pretty much the same load, same speed, (about 75) she has less power and only gets about 9.5mpg. My '01 will run away from her '16 and get 12mpg doing it.

Need 4x4, long bed, 4 door. Any input? Would really like to hear from long term owners of the 6.7 who still have emissions intact.

SOhappy

Sounds like you have one incredible 2nd gen. I'd hang onto it.

That said, the 2013+ DEF CTDs don't have nearly the emissions trouble and mpgs issues that the stock 2012 and earlier 6.7s did. My 2015 is getting 21mpg highway, 17 average, empty with stock-ish tires. Other than those related to the DEF recall awhile back (fixed under warranty), have yet to get any codes in 4 years and 80k- knock, knock.

If you can keep the '01 AND upgrade to a later model 6.7 then you can have the best of both worlds. I can't imagine a second-gen running away from mine. I guess it's possible with all your mods, but I've never once thought "dang this truck needs more power".

toesmack

This is the type of info I have been looing for. I have heard so many tales of woe on the newer trucks, I have been leery on buying a 6.7 powered model. 2 trucks are not really an option as I only have indoor parking for one. Hopefully I can get some more input also. Is that mileage hand calc?
Thanks!

BarryG

I really hated to let go of my 01. I had had it 16 or 17 years and put 350k on it. While it still ran great and even does today (sold it to my BIL) it was certainly showing its age and mileage in a variety of areas. I sat down one day and figured out about how much it would cost to get it back in the shape I wanted it to be in. I took that number then guestimated some future repairs that I figured weren't too far down the road and came up with a number. Weighed that against buying a new truck. For me, my truck and my situation at that point it made more sense(to me anyway) to get a new truck. I picked it up my 17 in Dec 17 and so far have over 43k of trouble free miles. My mileage is not as good as SoHappy's nor as good as my 01. The 01 would get 19-22 everyday all day empty and even loaded as long as I was not towing. The new one more like 15-20 empty towing mileage is just as good as the 01 and perhaps a bit better but not by much. The new one is light years ahead of the 01 for sure in most aspects. However time will tell how much of an issue the computers and electronics will be in the future. Hopefully it will last 15 years and 3-400k miles or more.

Cooter02

gsbrockman

I am currently at 350K with ZERO def, dpf, scr, or egr issues.

Yes....I hotshot with my truck, so it does get a good workout everyday.

Toesmack......do you realllllllly think it is fair to compare your modified 2001 to a stock 2016?

If you do decide on a 4th GEN, a 2013 DEF truck will be your best choice. Much better emissions system and beefier front end parts are a couple of reasons to go with that era.

Scotty

SOhappy

Yes, I hand calculate every fill up and log it. My tires are the stock diameter (currently) and speedo is within 1mph of gps at 60mph. Also the EVIC display mileage is never off the hand calc more than 1mpg anyway. My 3rd gen trucks were usually optimistic by at least 3mpg vs. hand calc.

P.S. I don't run the exhaust brake all the time like some guys do. I found that drops 2-3 mpgs! I only use it on steep descents (which is every morning in my case, so it doesn't gunk up).

Dieselbuilder

I feel your pain .I just sold my 01 same think lots of power nice truck that i owned since new but that said i bought 13 3500 longhorn still on the fence servicing cost is triple but a real nice ride quite smooth and not bad for power. I was looking to do the same think to rebuild it from the ground up but at my age just was not worth it { 65 } just looking for comfort, But it put a smile on the kid who bought it he had a 98 mind almost look like it just drove off the lot so i am glad it will be going to a good home so the last think i can say it is up to you if you want to make that next step to go newer lol

johnh

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toesmack

Thought I had this settled in my little pea brain, but here I go again.

Lots of good info, still can't decide on a 06-07 or brand new. Do I think comparison is fair? Never really considered it, but with the mild mods I've done, the newer truck should still out-perform my '01. That is if you believe the sales hype on the '01 mods, which I don't. Never saw any improved mileage, but did see increases in torque and turbo spool up time. Have another friend that has a 2016 bought new. Been to the dealer 14 times so far. Mostly emissions problems. He doesn't really know what heavy towing is, so I imagine a lot of short trips are contributing to the issues.
Sure do like the creature comforts on the new trucks, just trying to avoid problems that will outlast the warranty. I still tow heavy, and don't take a lot of short runs. Just trying to make the right decision.