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03/04 vs 06 mileage?

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Old Apr 28, 2006 | 10:32 AM
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derek witt
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03/04 vs 06 mileage?

I know mileage with these 6 liters is somewhat of a mystery. I have a 04 that has gotten as good as 20 - 21 consistently, and for the last 6 months getting more like 16 highway after a flash recall last year.

I am considering an 06 now and am wondering how those of you that have went from an 03/04 to an 06 like the change, and can comment on the fuel mileage between the two.

I have heard some positive stuff- just looking for more info/confirmation. I understand that everyone of these beasts are different, but some general trends seem to hold true from year to year.
 
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Old Apr 28, 2006 | 10:51 AM
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I would kill to get 15... I average only 13...
 
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Old Apr 28, 2006 | 12:44 PM
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That is in Canadian gallons by the way- which are about 15% larger than a US gallon. Converted I was getting around 17, now 13/14. thanks for any input.
 
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Old Apr 28, 2006 | 01:41 PM
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Before any flashes I got around 18mpg..and mid 19's if I took it easy on the highway. I got a flash and now down to 17...nothing better.

I just did the zoodad mod, ordered MBRP exhaust and will probally get a SCT tuner which I hope to bring my truck to atleast 19-20 mpg.
Cheers.
p.s. Mine is a 2004.
 
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Old Apr 28, 2006 | 01:57 PM
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my 2004 gets 18-20 on the freeway at 70-75mph and a good constant 20 all the time from TN to FL.
 
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Old Apr 28, 2006 | 03:25 PM
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gamas
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My 06 is getting 17 at 65-70 on my last 300 mile trip. Intown was 10 mpg...ugh.

1600 miles on my rig. I hope as it breaks in that I will see an increase. I haven't had a chance to pull with the 06. I was really happy with my 03's 11-13 mpg pulling my 30 foot travel trailor. Of course, what I really liked was that the truck just doesn't slow down pulling the trailor. My 93 F150 could be taxed with a head wind or hills.
 
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Old May 1, 2006 | 09:31 AM
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Call me crazy....but here are some new numbers after a mod.

I did the zoodad mod and filled up to see if I had any improvement. I would normally get around 200 miles at the 1/2 tank mark. During our trip it was at 285 miles!
After doing 72-77mph the whole way I filled up at the 1/4 mark. After doing the math (and my wife helped ) I found my highway miles were at 21 mpg from 17.5 mpg.

I thought this couldn't be true...so I watched closely on the return trip. I hit alot of stop and go traffic in New York City and found at 1/2 tank mark I had 250 miles. (from 200 miles average).

Call me crazy...I will continue to watch the numbers closely. I NEVER got that type of mileage out of my truck on a highway trip...usually 18.5 at best. Hopefully it stays around 21 mpg! Just ordered my MBRP exhaust for a reward to my truck
 
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Old May 1, 2006 | 12:42 PM
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04 CC 4x4 avg 15.0 mpg

06 CC 4x4 avg 15.5 mpg
 
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Old May 1, 2006 | 01:44 PM
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06 F 350 CC FX4 LB I got about 15.5 mpg mixed from new. Now I get about 16.6 mpg mixed with about 11,000 miles on it. I haven't had any long road trips on it yet so it might go up this summer traveling.I travel to work eveyday 48 miles one way to achieve my 16.6 mpg. Towing a 8000lb. load I got 13mpg. All of these were hand calc.I have 3.73 gears.
 

Last edited by JRM6868; May 1, 2006 at 02:15 PM.
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Old May 1, 2006 | 02:12 PM
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Originally Posted by Customz
04 CC 4x4 avg 15.0 mpg

06 CC 4x4 avg 15.5 mpg
It would help if they also told us what gear ratios they were running. I'v got an 04-F350-CC-DRW-6.0 with 4:10 LS & get 15/18 mpg freeway & 10.5/13.5 mpg towing our 35 ft. 1/5 WHL
 
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Old May 1, 2006 | 03:22 PM
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I got 3.73 in mine...and my EGR valve came unplugged?
 
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