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Lawdawg21's avatar
Lawdawg21
Explorer
Dec 01, 2014

Ford to GMC

Has anyone went from the 6.4 super duty to the 6.6 duramax dually? Thinking of going to the 2015 GMC because I like the body style. Is there a power difference??? Thanks in advance
  • Lawdawg21 wrote:
    Lol, good one fish!!!! Just wanting to know if anyone has any real world experience with the change. I like the ford but the gas mileage is killing me


    Try using diesel fuel. :B
  • Lawdawg21 wrote:
    Lol, good one fish!!!! Just wanting to know if anyone has any real world experience with the change. I like the ford but the gas mileage is killing me


    Any of the current DEF equipped diesel's will make better fuel economy than a 6.4 PSD which is the worst at fuel mileage.
  • Lawdawg21 wrote:
    Lol, good one fish!!!! Just wanting to know if anyone has any real world experience with the change. I like the ford but the gas mileage is killing me


    Funny joke OP!!!
  • Lol, good one fish!!!! Just wanting to know if anyone has any real world experience with the change. I like the ford but the gas mileage is killing me
  • My neighbor just brought home a GMC Denali with a Duramax. The rear view mirror's look to be on par or perhaps even better than the Fords.

    The current stock Duramax has more power than a stock 6.4 PSD.
  • Towing the duramax seems to get to the top first. Not by much but a win nonetheless. Published hp/tq numbers seem pretty meaningless when it comes to real world towing. Search Canadian hd truck challenge and Ike gauntlet.