Forum Discussion

I_m_Rick_James's avatar
I_m_Rick_James
Explorer
Aug 01, 2014

Convinced On Buying a '15 F350...

....and changed my mind the day I went to order the truck. I took a '15 F350 6.7 for a test drive to make sure it was what I wanted and left without placing the order. The interior was nearly identical to my '08, the mileage (as displayed on the dash) was around 11mpg,60k mile warranty, and I just couldn't get used to the grill. After careful consideration I elected to remain with Ram and picked this up.

'14 3500 Aisen, Laramie with all options excepting a sunroof. The '15 Powerstroke will absolutely destroy the Cummins in a drag race but I could care less about that aspect. So far my highway mileage is showing 21 (not hand calculated) which is considerably better than the '15 Ford or my '12 Ram.
Tow Vehicles
  • cummins2014's avatar
    cummins2014
    Explorer
    Aug 04, 2014
    DodgeVoltage wrote:
    jus2shy wrote:
    FishOnOne wrote:
    I would like know what your fuel economy is over a tank of diesel which should include a regen.

    The 21 mpg numbers are starting to sound like Bionic Man's mpg numbers. :W


    Hey Guys, just so you know, Cummins actually has a very good passive regen strategy and also seems to have the DPF closer to the engine than Ford does on the Super duty. If you maintain average MPH speeds over 40 or use your truck to frequently tow, you may never witness an active regeneration. I seem to have a regen event about every 1,000 miles on the average. The truck certainly runs differently when it does regen. During this summer, it's been more than 1,000 miles since my last active regen, namely because I've been driving to the coast or visiting family on the weekends getting good long drives in that passively regenerate the DPF. Feel free to check my fuelly account by clicking the link in my sig.


    I have a 2010 Ram 3500 w/ Cummins and a 2009 GMC 2500 w/ Duramax and have never noticed a regen on either of them. Both have about 40,000 miles on them. I wouldn't know what to look for or if it would feel different while it's happening.



    With just over 6K on my 2014 Ram, I too have never been aware of a regen. My first road trip with less then 1K on it I got 19.4 hand calculated. Towing just over 13K I get just over 10-10.5 hand calculated. So far running empty I get anywhere from 19.2-21.5.
  • jus2shy's avatar
    jus2shy
    Explorer
    Aug 03, 2014
    DodgeVoltage wrote:

    I have a 2010 Ram 3500 w/ Cummins and a 2009 GMC 2500 w/ Duramax and have never noticed a regen on either of them. Both have about 40,000 miles on them. I wouldn't know what to look for or if it would feel different while it's happening.


    Basically, you'll see your fuel economy dip. Your RPM's when you're moving slower or idling in a drive thru will be elevated a tiny bit as well. My truck runs smoother because of regeneration but it certainly drops my fuel economy when it does hit. But it doesn't seem to hurt that bad and the few times I've observed a regen, they tend to last for only 5 or 10 minutes.
  • DodgeVoltage's avatar
    DodgeVoltage
    Explorer
    Aug 03, 2014
    jus2shy wrote:
    FishOnOne wrote:
    I would like know what your fuel economy is over a tank of diesel which should include a regen.

    The 21 mpg numbers are starting to sound like Bionic Man's mpg numbers. :W


    Hey Guys, just so you know, Cummins actually has a very good passive regen strategy and also seems to have the DPF closer to the engine than Ford does on the Super duty. If you maintain average MPH speeds over 40 or use your truck to frequently tow, you may never witness an active regeneration. I seem to have a regen event about every 1,000 miles on the average. The truck certainly runs differently when it does regen. During this summer, it's been more than 1,000 miles since my last active regen, namely because I've been driving to the coast or visiting family on the weekends getting good long drives in that passively regenerate the DPF. Feel free to check my fuelly account by clicking the link in my sig.


    I have a 2010 Ram 3500 w/ Cummins and a 2009 GMC 2500 w/ Duramax and have never noticed a regen on either of them. Both have about 40,000 miles on them. I wouldn't know what to look for or if it would feel different while it's happening.
  • rjstractor's avatar
    rjstractor
    Nomad
    Aug 03, 2014
    GoPackGo wrote:
    I thought the EPA controlled the testing. Some kind of specific start-up, warm-up, and then a specific driving loop consisting of a set number of city miles and highway miles at controlled speeds. The average is what you see on the sticker. I'll have to look at a sticker next time I'm at a dealer.


    Since the EPA only requires mileage ratings on vehicles under 8500 GVWR (I think) you won't see any mileage figures posted on 2500/3500 series pickups.
  • texasclarks's avatar
    texasclarks
    Explorer
    Aug 03, 2014
    Congrats on the new truck. I love the color...someday my DW will allow me to have a garage big enough to park such beautiful toys ;)
  • GoPackGo's avatar
    GoPackGo
    Explorer
    Aug 03, 2014
    I thought the EPA controlled the testing. Some kind of specific start-up, warm-up, and then a specific driving loop consisting of a set number of city miles and highway miles at controlled speeds. The average is what you see on the sticker. I'll have to look at a sticker next time I'm at a dealer.
  • FishOnOne's avatar
    FishOnOne
    Nomad
    Aug 03, 2014
    45Ricochet wrote:
    Yeah I agree, they should list some kind of MPG on the sticker. But then again who controls what each manufacture prints on em, similar to not following J2807. Heck the Ford, Chevy and Ram bean counter would all fudge the numbers :W
    21 is pretty impressive though, I'm lucky to hit 20, most of the time it's 19-20 highway with my gas app with summer fuel. Not so lucky in winter :(


    I believe there's a EPA standard for calculating fuel economy. Some are overstated especially hybrids.
  • I_m_Rick_James's avatar
    I_m_Rick_James
    Explorer
    Aug 03, 2014
    FishOnOne wrote:
    I'm Rick James wrote:
    FishOnOne wrote:
    I would like know what your fuel economy is over a tank of diesel which should include a regen.

    Me too, I have yet to notice a regen but it only has 500 miles thus far. If you do some forum reading those numbers are pretty well aligned with what others have experienced. I also mentioned that the mileage was based upon what the EVIC was displaying so I'm sure it's a bit off.
    FishOnOne wrote:
    The 21 mpg numbers are starting to sound like Bionic Man's mpg numbers. :W

    I have zero motivation to be disingenuous over my mileage claims. I derive no validation for my truck purchase by posting false information on the internet. If you look back at my post history I've even made threads highlighting how poor my '12 Ram mileage was while towing.


    I've read your post's and believe you're a straight shooter... If your truck does indeed make 21 mpg (assuming Hwy) I'm impressed, but I've yet to read or hear of such numbers on a consistent basis.

    Looking forwards to future fuel economy reports.

    Here's a link to a lengthy thread on mileage results from the '13-'14MY Ram CTD, take it for what it's worth.
    http://www.cumminsforum.com/forum/2013-general-discussion/593358-2013-mileage-thread.html
  • 45Ricochet's avatar
    45Ricochet
    Explorer
    Aug 03, 2014
    Yeah I agree, they should list some kind of MPG on the sticker. But then again who controls what each manufacture prints on em, similar to not following J2807. Heck the Ford, Chevy and Ram bean counter would all fudge the numbers :W
    21 is pretty impressive though, I'm lucky to hit 20, most of the time it's 19-20 highway with my gas app with summer fuel. Not so lucky in winter :(

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