cancel
Showing results for 
Search instead for 
Did you mean: 

Ford to GMC

Lawdawg21
Explorer
Explorer
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
6 REPLIES 6

3oaks
Explorer
Explorer
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

FishOnOne
Nomad
Nomad
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.
'12 Ford Super Duty FX4 ELD CC 6.7 PSD 400HP 800ft/lbs "270k Miles"
'16 Sprinter 319MKS "Wide Body"

jerem0621
Explorer II
Explorer II
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!!!
TV-2022 Silverado 2WD
TT - Zinger 270BH
WD Hitch- HaulMaster 1,000 lb Round Bar
Dual Friction bar sway control

It’s Kind of Fun to do the Impossible
~Walt Disney~

Lawdawg21
Explorer
Explorer
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

FishOnOne
Nomad
Nomad
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.
'12 Ford Super Duty FX4 ELD CC 6.7 PSD 400HP 800ft/lbs "270k Miles"
'16 Sprinter 319MKS "Wide Body"

Paul_Clancy
Explorer
Explorer
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.