6.7 L Fuel economy - Page 7 - Dodge Cummins Diesel Forum
4th Gen Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine, Transmission, etc...NO ADVERTISING

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post #73 of 76 (permalink) Old 04-12-2019, 01:15 PM
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You guys have some pretty impressive mpg numbers. My best tank ever was 18.3, that was a completely stock mega cab auto truck. Most of my straight highway driving seems to come in around 17.5 average and around town (rural) I'm at about 15.5 average. Now my unloaded highway driving is keeping up with traffic so 75~80 most of the way. I'm sure I could get better if I was doing 60 but I would get run off the road at that speed.


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2016 Ram 2500 Big Horn Mega cab, 285/75-18 (35's) Nitto Ridge Grapplers. Fuel Hostage III 18x9 +18 BS Wheels. Bilstein 2.3″ Front Lift, 1" rear spacer.

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post #74 of 76 (permalink) Old 04-12-2019, 02:00 PM
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Iíd be interested to hear how your trip goes. Enjoy it, these thing are even better drives when you donít have to worry about the extension behind you.
Thanks, Walker. It'll be strange not towing anything, but I'm not worried about the extension behind me - it's the slow people ahead of me that worry me.

Maybe that's one reason my mileage isn't the best?

Maybe if we start telling people that the brain is an app, they will start using it?

'14 1500 V6, '17 3500 C&C, plus a '17 2500 in the household.
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post #75 of 76 (permalink) Old 04-12-2019, 02:44 PM
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I’d be interested to hear how your trip goes. Enjoy it, these thing are even better drives when you don’t have to worry about the extension behind you.
Thanks, Walker. It'll be strange not towing anything, but I'm not worried about the extension behind me - it's the slow people ahead of me that worry me.

Maybe that's one reason my mileage isn't the best?
Haha, could be.

16 CTD 2500 Bright White Crew Cab


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post #76 of 76 (permalink) Old 04-12-2019, 08:50 PM
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2018 6 SPD manual. Empty, lugging the engine, I can push 24-25 mpg. I've got the 3.40 hwy gears. Driving my style empty I get 17-18. I typically pull 15k-17k behind me, 90k miles in the last 7/8 mos. Mileage is directly related to time since my last fuel filter changes and wind direction/speed. When towing 17k at 75mph in light wind, no matter hills/mtn/ flat I get @9mpg. When my fuel filter life gets below 40%, it drops @ 1 to 1.5 mpg lower. I change my oil/filter and fuel filter element every 2 weeks and my fuel filter canister every month.
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