MPG vs new trucks - Page 3 - Dodge Cummins Diesel Forum
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post #25 of 28 (permalink) Old 10-17-2019, 02:47 PM
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Originally Posted by VADERPOWER View Post
As of right now, I can do over 800 plus miles per tank at 55mph easy. Keys to this,
Tire pressure I. E. Max the fronts, at least 65min. Rear.
Weight, with my 2wd, qc sb, with weight removed, I'm at 5950lbs. with a 1/4 tank of fuel.
Speed, anything over 60mph is killing you.
From a stop, never go over 6/8 pounds of boost, ever.
Tuning, fo sho, it truly does help tons, I just have a old smarty jr set on kill( max on all settings except torque management). Just abideing by those will help your mileage YUGE. From there, its the devil in the details like Steve has done exceptionally well.
True story, but I won't live long enough to drive freeways at 55-60mph! For fcks sakes, I'd have another birthday before I got to work in the morning driving like that!
And, I'd get flipped off and run off the road if I was trying to perfect my 10 second 0-30 time away from every stoplight and my how low of rpms can I possibly run in OD without lugging the engine strategy.

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post #26 of 28 (permalink) Old 10-19-2019, 08:49 PM
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My 04.5 QCSB NV5600 on 37s, 6 inch lift and 4.56 gears managed just over 18 MPG hand calc'd. RPMS were between 2100-2250 speed was around 70ish MPH and cruise control was on.
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post #27 of 28 (permalink) Old 10-20-2019, 11:28 AM
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I just got to witness a good mpg test of my truck compared to a Ď17 F350 short box. A group of us has made a trek from western Washington to southeast Wyoming a few times to hunt. I have always taken my truck and towed my 27í Enclosed trailer filled with quads, wall tent, freezers, and all the rest of our gear. I have consistently achieved 10.5-11 mpg, hand calculated on every trip. My truck has done this trip 5 times. Speeds are generally 75-85 mph. Empty, my road trips generate 18.5 mpg, but everyday mixed driving I am right at 14.5 mpg.
Well this year, we took my buddies new to him Ď17 Ford and my trailer. His truck has 35k on it and is completely stock. Our mileage there and back was a pretty solid 9.5 mpg. Truck pulled the load easily through all the passes, though it was obvious mine was putting more power to the ground. I really thought the mileage would be a little higher for some reason, but it still was a pretty good comparison test. I did all the mpg checks, hand calculated, and was suprised to see his display was always right on with my calculations, if it was not exact, it was off by .1. My Dodge isnít even close.

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post #28 of 28 (permalink) Old 10-20-2019, 01:10 PM
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Originally Posted by aogmitch View Post
I just got to witness a good mpg test of my truck compared to a ‘17 F350 short box. A group of us has made a trek from western Washington to southeast Wyoming a few times to hunt. I have always taken my truck and towed my 27’ Enclosed trailer filled with quads, wall tent, freezers, and all the rest of our gear. I have consistently achieved 10.5-11 mpg, hand calculated on every trip. My truck has done this trip 5 times. Speeds are generally 75-85 mph. Empty, my road trips generate 18.5 mpg, but everyday mixed driving I am right at 14.5 mpg.
Well this year, we took my buddies new to him ‘17 Ford and my trailer. His truck has 35k on it and is completely stock. Our mileage there and back was a pretty solid 9.5 mpg. Truck pulled the load easily through all the passes, though it was obvious mine was putting more power to the ground. I really thought the mileage would be a little higher for some reason, but it still was a pretty good comparison test. I did all the mpg checks, hand calculated, and was suprised to see his display was always right on with my calculations, if it was not exact, it was off by .1. My Dodge isn’t even close.
Interesting. My work truck is a Ford and it consistently gets better mileage than my Ram and the Ford has more power (both stock) one of my biggest complaints with the Ram is the inaccurate EVIC when compared to how accurate the Ford has always been. Good to see I’m not the only one to notice that.

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