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post #1 of 17 (permalink) Old 01-08-2011, 05:30 PM Thread Starter
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Does anyone know how to get better fuel mileage out of a 6.7L cummins. Someone told me by taking the DPF off you could get 20-24 mpg
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post #2 of 17 (permalink) Old 01-08-2011, 08:48 PM
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Originally Posted by Lawnguy70301 View Post
Does anyone know how to get better fuel mileage out of a 6.7L cummins. Someone told me by taking the DPF off you could get 20-24 mpg


I have seen 19 city as my best but couldn't tell you hwy since I tuned because it always has a load on it on hwy.. 10k plus I ave. about 12-14 depending on how I drive.

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post #3 of 17 (permalink) Old 01-09-2011, 12:28 PM
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removing all the junk helps alot. I just got 19.4 running 65mph empty and average 11.8 to 13 wit trailer same speed

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post #4 of 17 (permalink) Old 01-09-2011, 08:00 PM
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Getting 14-16 mpg around town....depending on how I drive.
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post #5 of 17 (permalink) Old 01-14-2011, 12:07 AM
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Getting 14-16 mpg around town....depending on how I drive.
Are you deleted? are you auto or stick? are you 4:10 gears?
Im stock 4:10 auto same truck as you and Im getting 10-10.9
all town.
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post #6 of 17 (permalink) Old 01-14-2011, 03:50 AM
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Id say 24 is a stretch. I let my dad take my truck to his cabin he got 21 with it, best ive ever got was 19.4. Taking off the egr cooler helped alot dropped my egts 230 degres or so.

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post #7 of 17 (permalink) Old 01-22-2011, 06:54 PM
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On a 1000 mile trip we just got 22-23 mpg running 70-75 mph.
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post #8 of 17 (permalink) Old 01-22-2011, 07:33 PM
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On a 1000 mile trip we just got 22-23 mpg running 70-75 mph.
I call BS on that one unless the whole trip was down hill.

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post #9 of 17 (permalink) Old 01-22-2011, 08:12 PM
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It was Ohio to Florida. We got around 21-22 on the way back, Florida to Ohio. We checked the computer mpg on a few gas fill ups and it was right on.
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post #10 of 17 (permalink) Old 01-23-2011, 07:36 AM
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It was Ohio to Florida. We got around 21-22 on the way back, Florida to Ohio. We checked the computer mpg on a few gas fill ups and it was right on.
Auto or manual? What year? Cause with a 100k and straight pipe and 18in wheels and 32in tires and a tuner running 175hp or 60hp i still only get 19-20.5 hand calc. and thats running 65 according to GPS and my speedo registering at 66mph thats roughly 1900rpm. Once you hit 70mph in my truck figure on loosing a good 2-3mpg no bullchit. I dont care if people tell me i can get better fuel economy on a higher hp tune i proved that wrong wit my truck and in my business FUEL MILEAGE is key to making a buck

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