6.4/6.0/7.3 towing mileage - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 21 (permalink) Old 04-06-2007, 11:43 PM Thread Starter
 
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6.4/6.0/7.3 towing mileage

I just got back from a trip towing the same trailer, load and on the same roads that I have covered before in my 7.3 (chip, exhaust, filter), 6.0 (stock) and my 6.4. All are SWB/CC/3.73 auto 4x4ís. The trailer is a 26í enclosed car hauler and total weight is 10K/lbs.

First, there is no comparison to how well the 6.4 pulls compared to the others. Very little gear hunting as it pretty much goes into 5th and stays there. The truck is much quieter and much more stable. The power off idle with the trailer is more than the 7.3 or the 6.0. My 7.3 may have been stronger in an outright drag race but the 6.4 tows the trailer much more easily and the engine just doesnít feel like itís working very hard. Youíre not very aware of it coming on and off the boost compared to the others.
My measured mileage was 11.1MPG with the 6.4, 12MPG with the 6.0 and 13MPG with the 7.3. 65-70MPH with each one.

Still like the truck more every day and couldn't imagine going back
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post #2 of 21 (permalink) Old 04-07-2007, 12:14 AM
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Awesome report, thank you:Thumbup:

-ADAM-

2008 Ford F-350 King Ranch, 4x4, 6.4L, Powerstroke Diesel, Torqueshift, Spartan Tuned, 4in FloPro Straight Duals, Afe Stg 2 Intake, Chromed & Tinted out!!! 115k Miles!
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post #3 of 21 (permalink) Old 04-07-2007, 12:22 AM
 
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I also will be reporting on tow milage later after my madien voage.with sc long bed with 373 2WD. 26' TT 7000 lbs max loaded.
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post #4 of 21 (permalink) Old 04-07-2007, 01:27 AM
 
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Quote:
Originally Posted by Boulder GT3
I just got back from a trip towing the same trailer, load and on the same roads that I have covered before in my 7.3 (chip, exhaust, filter), 6.0 (stock) and my 6.4. All are SWB/CC/3.73 auto 4x4ís. The trailer is a 26í enclosed car hauler and total weight is 10K/lbs.

First, there is no comparison to how well the 6.4 pulls compared to the others. Very little gear hunting as it pretty much goes into 5th and stays there. The truck is much quieter and much more stable. The power off idle with the trailer is more than the 7.3 or the 6.0. My 7.3 may have been stronger in an outright drag race but the 6.4 tows the trailer much more easily and the engine just doesnít feel like itís working very hard. Youíre not very aware of it coming on and off the boost compared to the others.
My measured mileage was 11.1MPG with the 6.4, 12MPG with the 6.0 and 13MPG with the 7.3. 65-70MPH with each one.

Still like the truck more every day and couldn't imagine going back
What do you get with the 6.4 on the Hwy NOT towing?
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post #5 of 21 (permalink) Old 04-07-2007, 03:40 AM Thread Starter
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Originally Posted by DieselLover
What do you get with the 6.4 on the Hwy NOT towing?
16.5MPG on the the highway at 70MPH
14 around town keeping my foot out of it.
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post #6 of 21 (permalink) Old 04-07-2007, 04:08 AM
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I just got back in town towing my 29 foot holiday trailer.i got around 7 mpg and my turbo boost sat around 37psi. i drove about 180 km total distance mostly with a head wind. my average speed was about 70 mph and ran about 2600 rpm. it pulled smooth and took off like a bullet from the lights. sure liked it better than my 05 f350 6.0l
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post #7 of 21 (permalink) Old 04-07-2007, 01:06 PM
 
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Quote:
Originally Posted by Boulder GT3
16.5MPG on the the highway at 70MPH
14 around town keeping my foot out of it.
OUCH!! Have you thought about a chip? I wonder what people are getting with a chip? I'm used to getting 23 mpg hwy with a 1993 5.9L Cummins....Wow Ford sure has made improvements!: No offense! Great truck...if they could only get that mileage up!
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post #8 of 21 (permalink) Old 04-07-2007, 01:41 PM
 
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Quote:
Originally Posted by DieselLover
OUCH!! Have you thought about a chip? I wonder what people are getting with a chip? I'm used to getting 23 mpg hwy with a 1993 5.9L Cummins....Wow Ford sure has made improvements!: No offense! Great truck...if they could only get that mileage up!
laugh

Any older truck with a diesel in it will get good MPG. The 94-97 PSD's got close to 20 or better on the HWY.

The 03 and later 5.9L cummins is no master at MPG all the guys around here are getting like 15MPG with them I heard the 6.7L went down even worse like 12-13MPG HWY

I went on a hunting trip with a few friends last year and we took a 03 CTD 2500 and got 15MPG on the interstate.

This last diesel power mag they where getting 18MPG hwy with there road test 6.4L

Base line is with the PDF filter and keeping good MPG the 6.4L is doing GREAT!!!!!
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post #9 of 21 (permalink) Old 04-07-2007, 02:48 PM Thread Starter
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Quote:
Originally Posted by DieselLover
OUCH!! Have you thought about a chip? I wonder what people are getting with a chip? I'm used to getting 23 mpg hwy with a 1993 5.9L Cummins....Wow Ford sure has made improvements!: No offense! Great truck...if they could only get that mileage up!
My 7.3 only got 2-3MPG better while it rattled and smelled. I'll gladly give the MPG up for the refinement of the new trucks. It's nice to be able to start the truck in the driveway and not have my house smell like a truckstop if I open the garage door.

The guys I do car events with all have newer trucks of all differant makes. We pull more or less the same loads and trailer configurations at pretty much the same speeds. None of the new trucks seem to do markedly better than any others from a MPG standpoint.

Ford has got the mapping and driveability so well sorted from the factory I don't feel a need to chip for that reason let alone the warranty issues.
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post #10 of 21 (permalink) Old 04-07-2007, 03:33 PM
 
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Quote:
Originally Posted by Six_leaker
laugh

Any older truck with a diesel in it will get good MPG. The 94-97 PSD's got close to 20 or better on the HWY.

The 03 and later 5.9L cummins is no master at MPG all the guys around here are getting like 15MPG with them I heard the 6.7L went down even worse like 12-13MPG HWY

I went on a hunting trip with a few friends last year and we took a 03 CTD 2500 and got 15MPG on the interstate.

This last diesel power mag they where getting 18MPG hwy with there road test 6.4L

Base line is with the PDF filter and keeping good MPG the 6.4L is doing GREAT!!!!!


Would you care to expound on this? Thanks for the info! :bow:
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