6.4 Fuel Economy
#31
07-01-2014, 04:00 PM
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Yeah don't even try it on a stock truck, or tuned with DPF on.
Disaster could be the end result.
The 6.4 uses so much EGR that if you disable the turbo, the combustion will be severely lacking clean air, so it will gum everything up and probably run like absolute garbage.
The DPF on tunes control the air intake and EGR intake to burn clean, and if you disable the turbo, it will no longer do that, and likely the truck will run like junk for a short time until the DPF is destroyed.
On a tuned deleted truck, the engine is getting 100% fresh air, instead of EGR mixed air, so the truck runs decent without the turbo actuator hooked up.
One more time, don't mess with the turbo actuator if the DPF is on the truck, or the EGR is operating. Bad idea.
Disaster could be the end result.
The 6.4 uses so much EGR that if you disable the turbo, the combustion will be severely lacking clean air, so it will gum everything up and probably run like absolute garbage.
The DPF on tunes control the air intake and EGR intake to burn clean, and if you disable the turbo, it will no longer do that, and likely the truck will run like junk for a short time until the DPF is destroyed.
On a tuned deleted truck, the engine is getting 100% fresh air, instead of EGR mixed air, so the truck runs decent without the turbo actuator hooked up.
One more time, don't mess with the turbo actuator if the DPF is on the truck, or the EGR is operating. Bad idea.
I think I get the picture
Seriously, thanks for the heartfelt advice.
JM
#32
07-12-2014, 12:30 AM
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I took my 35" mud tires off and put on some 285 AT 10 plys. Ill be making a trip to Texas next week and will hand cal my fuel mileage. Im still running stock with a SCT 120hp tune. DFP on still.
When I check my mileage after removing the mud tires I picked up almost 1.5 mpg.
My truck is a LWB DRW 4x4 King Ranch. Ill check back in after my trip next week.
When I check my mileage after removing the mud tires I picked up almost 1.5 mpg.
My truck is a LWB DRW 4x4 King Ranch. Ill check back in after my trip next week.
#33
07-12-2014, 05:33 PM
#34
07-12-2014, 05:45 PM
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#36
08-06-2014, 04:09 AM
I think over 20 is possible, but depends how you drive.
Screaming down the road at 70 mph, no friggin way.
Mine has 3.73 gears, and I can get over 20 on highway trips.
Also stock wheels and tire size.
They say the best MPG a vehicle can get, is the slowest speed possible with the torque converter locked. This would be around 80 km/h.
I noticed when driving in BC with mine, most of the time I'm driving a lot slower than on the open roads of the prairies, and the fuel lasts a lot longer.
As much as I hate lowered trucks, a worthwhile investment might be putting airbags and new suspension on one of these trucks, so you could go say 4" lower than stock to 2" higher than stock.
Lowering it on the highway I bet is good for a couple MPG.
I don't believe a tuned 6.4 should have any problems to get great MPG. It's a common rail diesel just like any new diesel engine, and once the emissions junk is gone, I see no downside at all to owning one. In fact I think the 6.4 is actually a tougher engine than the 6.7, although the 6.7 is much nicer 100% stock for sure.
Screaming down the road at 70 mph, no friggin way.
Mine has 3.73 gears, and I can get over 20 on highway trips.
Also stock wheels and tire size.
They say the best MPG a vehicle can get, is the slowest speed possible with the torque converter locked. This would be around 80 km/h.
I noticed when driving in BC with mine, most of the time I'm driving a lot slower than on the open roads of the prairies, and the fuel lasts a lot longer.
As much as I hate lowered trucks, a worthwhile investment might be putting airbags and new suspension on one of these trucks, so you could go say 4" lower than stock to 2" higher than stock.
Lowering it on the highway I bet is good for a couple MPG.
I don't believe a tuned 6.4 should have any problems to get great MPG. It's a common rail diesel just like any new diesel engine, and once the emissions junk is gone, I see no downside at all to owning one. In fact I think the 6.4 is actually a tougher engine than the 6.7, although the 6.7 is much nicer 100% stock for sure.
#37
12-01-2016, 06:51 AM
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6.4 lousy fuel mileage
I have a 2010 6.4 with AFE cold air box, DPF/Cat removed and 4" straight pipes with XRT-4 tuner for 5 months now and I'm still getting 8-10 mpg if i'm lucky!
I ran the Tow tune coming back to Baja towing my 5th wheel truck ran great but 7-10 mpg, then changed tune back to 1st power level after we got home no difference on mpg????
one thing that is way different about this truck is the wineing sound from the turbo winding up or down with cold air box on that i've never heard form my other Fords?
I'm planning to do the ERG delete next but not sure this will help or not
My truck has always run fine with no issues other than horrible fuel usage. I'm about ready to sell this beast over my cost for fuel.
I ran the Tow tune coming back to Baja towing my 5th wheel truck ran great but 7-10 mpg, then changed tune back to 1st power level after we got home no difference on mpg????
one thing that is way different about this truck is the wineing sound from the turbo winding up or down with cold air box on that i've never heard form my other Fords?
I'm planning to do the ERG delete next but not sure this will help or not
My truck has always run fine with no issues other than horrible fuel usage. I'm about ready to sell this beast over my cost for fuel.
#38
12-01-2016, 06:58 AM
#39
12-01-2016, 07:14 AM
Hotshot
Hand calculating, I get between 10.5 to 14mpgs. I drive an F450 service truck that weighs about 15,000lbs. It's been re-geared to 3:73's (should've gone with 4:10's), deleted and tuned.
Are you hand calculating the mileage or going off the lie-o-meter? The lie-o-meter in my truck says I'm getting 16.
Are you hand calculating the mileage or going off the lie-o-meter? The lie-o-meter in my truck says I'm getting 16.
#40
12-01-2016, 07:39 AM
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I have a 2010 6.4 with AFE cold air box, DPF/Cat removed and 4" straight pipes with XRT-4 tuner for 5 months now and I'm still getting 8-10 mpg if i'm lucky!
I ran the Tow tune coming back to Baja towing my 5th wheel truck ran great but 7-10 mpg, then changed tune back to 1st power level after we got home no difference on mpg????
one thing that is way different about this truck is the wineing sound from the turbo winding up or down with cold air box on that i've never heard form my other Fords?
I'm planning to do the ERG delete next but not sure this will help or not
My truck has always run fine with no issues other than horrible fuel usage. I'm about ready to sell this beast over my cost for fuel.
I ran the Tow tune coming back to Baja towing my 5th wheel truck ran great but 7-10 mpg, then changed tune back to 1st power level after we got home no difference on mpg????
one thing that is way different about this truck is the wineing sound from the turbo winding up or down with cold air box on that i've never heard form my other Fords?
I'm planning to do the ERG delete next but not sure this will help or not
My truck has always run fine with no issues other than horrible fuel usage. I'm about ready to sell this beast over my cost for fuel.
If you drive 60-65 or..
If you keep the rpm at 1800 and under or...
Maybe, just maybe you'll get mileage above 14.....maybe
I've done it a time or two but generally speaking when the speed limit says 80, I'll do 80. I have patience issues
Good luck.
#41
12-02-2016, 07:37 AM
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**** poor fuel milage
I've got a 2010 6.4 I have been getting 10-12 mpg maybe, trucks all stock. 18" tires
I added AFE cold air box, XRT-4 Tuner, full DPF/CAt delete with 4" straight pipe exhaust nad now it's worse not better.
I'm running the tow package with my 12,000 lb 5th wheel and getting 7-9 now- ugg
Changed tune to level 1 program and still get crappy mileage. 8-10 maybe?
The truck has always run great with no power issues at all. I just wanted better milage -period
My auto-body shop guy has 6.7 Ford with mini-max, egr, DPF/Cat delete and he now gets 18 in town and 26 at 80 mph on the road.
What the heck gives here? I've had 6 ford diesels and this truck sucks fuel and i can't take it much longer.
I added AFE cold air box, XRT-4 Tuner, full DPF/CAt delete with 4" straight pipe exhaust nad now it's worse not better.
I'm running the tow package with my 12,000 lb 5th wheel and getting 7-9 now- ugg
Changed tune to level 1 program and still get crappy mileage. 8-10 maybe?
The truck has always run great with no power issues at all. I just wanted better milage -period
My auto-body shop guy has 6.7 Ford with mini-max, egr, DPF/Cat delete and he now gets 18 in town and 26 at 80 mph on the road.
What the heck gives here? I've had 6 ford diesels and this truck sucks fuel and i can't take it much longer.
#42
12-02-2016, 07:47 AM
I've got a 2010 6.4 I have been getting 10-12 mpg maybe, trucks all stock. 18" tires
I added AFE cold air box, XRT-4 Tuner, full DPF/CAt delete with 4" straight pipe exhaust nad now it's worse not better.
I'm running the tow package with my 12,000 lb 5th wheel and getting 7-9 now- ugg
Changed tune to level 1 program and still get crappy mileage. 8-10 maybe?
The truck has always run great with no power issues at all. I just wanted better milage -period
My auto-body shop guy has 6.7 Ford with mini-max, egr, DPF/Cat delete and he now gets 18 in town and 26 at 80 mph on the road.
What the heck gives here? I've had 6 ford diesels and this truck sucks fuel and i can't take it much longer.
I added AFE cold air box, XRT-4 Tuner, full DPF/CAt delete with 4" straight pipe exhaust nad now it's worse not better.
I'm running the tow package with my 12,000 lb 5th wheel and getting 7-9 now- ugg
Changed tune to level 1 program and still get crappy mileage. 8-10 maybe?
The truck has always run great with no power issues at all. I just wanted better milage -period
My auto-body shop guy has 6.7 Ford with mini-max, egr, DPF/Cat delete and he now gets 18 in town and 26 at 80 mph on the road.
What the heck gives here? I've had 6 ford diesels and this truck sucks fuel and i can't take it much longer.
He doesn't get 18 in town and he doesn't get 26 at 80 either.
#43
12-02-2016, 07:54 AM
Hotshot
I'm not familiar with the tuner you have. The only one I've ever used is H&S mini-max that I have. And I get anywhere from 10 to 14mpgs in my 15,000lb F450 work truck. I know the 6.4's are not known for their excellent fuel mileage. I would question your buddy that's getting that kind of mileage out of a deleted 6.7. I guess anything's possible though. I know with my truck, driving in the city or on the back roads absolutely kills the fuel mileage. Highway is much better.
#44
12-02-2016, 10:57 AM
