14 Cummins Mileage #s

Arctic-Rodz · Oct 20, 2014

ceide4489 said:
I have 2014 3500 with auto and 35in tires and get 19-20 on hwy

I have seen as high as 22

2500 miles or so on it

At what speed are we talking about?

Speed limit in my area is 75MPH and my 1500 Hemi V8 4x4 (stock tires and level kit only) cant break 18MPG!!!

regularcab2500 · Oct 20, 2014

Arctic-Rodz said:
At what speed are we talking about?

Speed limit in my area is 75MPH and my 1500 Hemi V8 4x4 (stock tires and level kit only) cant break 18MPG!!!

i got a 6.4 that on a trip across ny cruised at 65 unloaded my evic read 19.9..couldnt get it to hit 20 but thats close enough to me ive been bragging to a lot of people about that haha did 79 the entire way back it only dropped to the low 17s

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Arctic-Rodz · Oct 20, 2014

For me 18.x MPG is on a flat road @ 75MPH

@65 MPH I can see 21MPG or so but going 65 is WAY too slow for Texas highways

regularcab2500 · Oct 20, 2014

Arctic-Rodz said:
For me 18.x MPG is on a flat road @ 75MPH

@65 MPH I can see 21MPG or so but going 65 is WAY too slow for Texas highways

fair enough..ny is pretty much flat across the I90 and the speed limit is 65 but you can get away with drivin like a **** if you want

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loveracing1988 · Oct 20, 2014

regularcab2500 said:
i got a 6.4 that on a trip across ny cruised at 65 unloaded my evic read 19.9..couldnt get it to hit 20 but thats close enough to me ive been bragging to a lot of people about that haha did 79 the entire way back it only dropped to the low 17s

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Going to work tonight set the cruise at 78, averaged 14.1 miles per gallon with no wind, I wish I could see those kinds of numbers!

regularcab2500 · Oct 21, 2014

i think you guys forget i have a single cab too..the truck only weighs 6400lbs which is a steep drop from you crew cab and especially mega cab owners..even a cc 1500 w/6.4" bed with a few passengers weighs as much as me..i feel like i have a much different experience with the 6.4 hemi than most of you guys from what i read on here...

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regularcab2500 · Oct 21, 2014

loveracing1988 said:
Going to work tonight set the cruise at 78, averaged 14.1 miles per gallon with no wind, I wish I could see those kinds of numbers!

and like i said i keep it in the pusspuss zone of rpms most times lol ive noticed little difference in the city but babying it on the highway really helps..

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loveracing1988 · Oct 21, 2014

regularcab2500 said:
and like i said i keep it in the pusspuss zone of rpms most times lol ive noticed little difference in the city but babying it on the highway really helps..

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I usually drive 65 mph on the expressway, I just happened to run late last night so I had to drive faster. The key is I lost at least 1 mpg with the switch to winter fuel.

regularcab2500 · Oct 21, 2014

loveracing1988 said:
I usually drive 65 mph on the expressway, I just happened to run late last night so I had to drive faster. The key is I lost at least 1 mpg with the switch to winter fuel.

i most likely will too..probably more because i let my truck warm up for at least 5 min every day

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Arctic-Rodz · Oct 23, 2014

loveracing1988 said:
Going to work tonight set the cruise at 78, averaged 14.1 miles per gallon with no wind, I wish I could see those kinds of numbers!

oh yea, any MPH over 75 for me costs me at least 1mpg.

65 is the sweet spot on my 1500 Hemi but as I mentioned before. 75MPH is the most common speed limit in Texas. Not to mention the toll way area going out of Austin/Houston.
Speed limit there is 85!

TEXAS :favorites13:

In my wife's GLI Autobahn I average 33MPG going about 80MPH or so. Such a fun little car to drive!

ceide4489 · Oct 24, 2014

Arctic-Rodz said:
At what speed are we talking about?

Speed limit in my area is 75MPH and my 1500 Hemi V8 4x4 (stock tires and level kit only) cant break 18MPG!!!

Your also talking a Hemi and I am talking a diesel but I do 70mph most times

But you cant compare your half ton hemi to my 1 ton diesel

I couldnt get any more than 15 with my 12 hemi

regularcab2500 · Oct 24, 2014

yeah my 6.4 can never expect diesel mpgs although it does really well on the highway due to mds..id say if i can get almost 20 doing 65-70 you should be able to do better with a manual cummins

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ceide4489 · Oct 26, 2014

I know several with the 6.4 hemi and if your getting 20 your getting well above the average of any I have talked to. Mine was 15 at best ever.

I have automatic diesel and have had all 3 dodge ford and chevy in last several years and this one is the best mileage stock so far. My chevy got better than this after all emmisiions were removed. So far very happy with the truck and mileage.

regularcab2500 · Oct 26, 2014

20 is by far best possible thats consistant 65-70 for over 350 miles..do all the people you know own regular cabs too? if so id like some pics i havent seen that many

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couleeman23 · Sep 9, 2015

Averaging 18mpg since I bought it, about 30% pulling a trailer and about 60/40 highway/city. Can't complain as my wife's 1500 is getting the same.

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Eyellman1 · May 1, 2016

400 miles all flat highway driving at 70-80mph averaged 20.5 on a 2500 2014 mega cab. Wondering how bigger tires will affect mpg?

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jadocs · May 1, 2016

Eyellman1 said:
400 miles all flat highway driving at 70-80mph averaged 20.5 on a 2500 2014 mega cab. Wondering how bigger tires will affect mpg?

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That's close to what I get. I've been doing 600 mile round trips every weekend since last August driving 75-85 mph and average 21 to 21.5 each way (crew cab).

Larger tires will definitely have an effect on your MPGs.

14 Cummins Mileage #s

Arctic-Rodz

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regularcab2500

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Arctic-Rodz

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regularcab2500

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loveracing1988

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regularcab2500

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regularcab2500

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Arctic-Rodz

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ceide4489

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regularcab2500

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regularcab2500

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couleeman23

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Eyellman1

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