mpg input wanted
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mpg input wanted
Getting 9.5 mpg out of my 06, 6 liter F250 while pulling 12000lb high profile 5th wheel. I have heard some interesting things about the mileage results that Ford engineers have been getting in testing of the new diesel. Sure would be nice if some new owners would share their experiences with other fte members, looking to see some input.
Postmaster
Joined: Oct 2007
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From: Illinois
Getting 9.5 mpg out of my 06, 6 liter F250 while pulling 12000lb high profile 5th wheel. I have heard some interesting things about the mileage results that Ford engineers have been getting in testing of the new diesel. Sure would be nice if some new owners would share their experiences with other fte members, looking to see some input.
Sure would be nice if any of us had ours so we could help out...
Anyone know where that Rutcutter guy lives...??
Posting Guru
Joined: Mar 2003
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There’re 3 on the lot at Kings Colonial Ford in Brunswick GA. 2 Lariats and 1 KR, all CC SB 4X4s. They’ve been there sense Friday.
Postmaster
Joined: Oct 2007
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From: Illinois
Here in the midwest there are not too many Lariats or KR's
Junior User
Joined: Mar 2008
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From: columbia,sc
Bought my 2011 SCREW, short bed, 6.7 King Ranch last friday. First one delivered at my dealership, I found it on the dealer web site 2 days before delivery. On my first tank of diesel, my lie-o-meter is saying 3.5 to 4 mpg more in town than my 08 SCREW, short bed, 6.4 KR. This is comparing lie-o-meter to lie-o-meter, I have not filled up yet to hand calculate. Getting around 14 mpg in town. Pretty good start.
Junior User
Joined: Mar 2008
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From: columbia,sc
Second tank of diesel in 6.7, hand calculated....13.3 mpg on first tank totally driving in town with a heavy foot. I am pretty excited after being lucky to get 10 mpg with my 6.4.
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I hope it is better than that after break in! Ford's touts best fuel mielage and to me that better 15.5 mpg to beat the older Durmax (2008) around town with a lead foot. Chevy is touting improved mpg for 2011 and something like 550+ miles per tank! Seriously! I remember getting 500 miles plus per tank and even just missing 600 on the highway with my 08' Silverado. With my 09' 6.4 I'm lucky to get 330-380 miles out of a tank period. All these are calculated empty as averages drop when pulling of course.
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Posting Guru
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I hope it is better than that after break in! Ford's touts best fuel mielage and to me that better 15.5 mpg to beat the older Durmax (2008) around town with a lead foot. Chevy is touting improved mpg for 2011 and something like 550+ miles per tank! Seriously! I remember getting 500 miles plus per tank and even just missing 600 on the highway with my 08' Silverado. With my 09' 6.4 I'm lucky to get 330-380 miles out of a tank period. All these are calculated empty as averages drop when pulling of course.
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Joined: Aug 2003
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From: Isanti, MN
Especially with CARB and the EPA.
Logistics Pro
Joined: Nov 2002
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From: Mansfield, TX USA
Remember. My '99 PSD was rated at 235 HP and 500 ft/lbs. torque.
1st generation (until 1995) Dodge Cummins (renowned for getting in the low 20s mpg) had 160 HP and 400 ft/lbs. torque.
Go back to those numbers, and you might see 20 mpg again.
Super Moderator
Joined: Aug 2003
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From: Isanti, MN
You want power? That costs fuel.
Remember. My '99 PSD was rated at 235 HP and 500 ft/lbs. torque.
1st generation (until 1995) Dodge Cummins (renowned for getting in the low 20s mpg) had 160 HP and 400 ft/lbs. torque.
Go back to those numbers, and you might see 20 mpg again.
Remember. My '99 PSD was rated at 235 HP and 500 ft/lbs. torque.
1st generation (until 1995) Dodge Cummins (renowned for getting in the low 20s mpg) had 160 HP and 400 ft/lbs. torque.
Go back to those numbers, and you might see 20 mpg again.
So why do peak power numbers have anything to do with MPGs when the vast majority of the time the engine is nowhere near it's peak HP or torque output?
Logistics Pro
Joined: Nov 2002
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From: Mansfield, TX USA
Going down the freeway at 65 MPH doesn't take 350 HP. Which is good because my truck doesn't make that much power at freeway speeds unless I'm towing something heavy up a hill.
So why do peak power numbers have anything to do with MPGs when the vast majority of the time the engine is nowhere near it's peak HP or torque output?
So why do peak power numbers have anything to do with MPGs when the vast majority of the time the engine is nowhere near it's peak HP or torque output?
Super Moderator
Joined: Aug 2003
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From: Isanti, MN
https://www.ford-trucks.com/specs/20...ries_SD_1.html
https://www.ford-trucks.com/specs/20...er_duty_1.html
My 6.4L has peak torque at 2,000 RPMs, as does the 6.0.
Also peak HP and torque are great, but the engine NEVER makes that much power or torque unless it's under full load. The engine can make nearly any amount of power and torque at any RPM up to it's peak. It's almost infinitely variable.
Whether I'm empty with no trailer or with 11,000 lbs of trailer behind me I'm pulling down the road at 1800 RPM. Empty I'll get between 15-16, with 11,000 lbs of enclosed trailer I get 8-10. Engine is under very light load without trailer, meaning it's making very little power in comparison to it being under nearly full load with a heavy trailer making lots of power.
Also it's important to remember that fuel consumption is directly proportional to HP output, not torque. This means that in order for an engine to burn more fuel at one point than another it has to be making more power. And it can do this at the SAME RPM!