2013 Cummins vs 2019 Gasser - Dodge Cummins Diesel Forum
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post #1 of 33 (permalink) Old 12-07-2019, 09:39 PM Thread Starter
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2013 Cummins vs 2019 Gasser

So - new member and first post, thanks for having me. Looking at a used 2013 Laramie Longhorn Cummings with only 36,000 miles. 3.42 rear axle. I drive 3500-ish miles a month, mostly highway. I understand the 2019 gassers with the new 8 speed trannys are getting pretty good mpg's. Any thoughts on going gas instead of diesel in this situation to avoid the upfront costs of the diesel and the additional problems/costs of the emissions issues?

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post #2 of 33 (permalink) Old 12-07-2019, 09:49 PM
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Do you tow heavy or frequently? If not gas would probably be your best option.


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post #3 of 33 (permalink) Old 12-07-2019, 10:04 PM Thread Starter
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Don't tow very often, but do haul 2000-3000 lbs in the bed half dozen times a month or so, hence the 3/4 ton.
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post #4 of 33 (permalink) Old 12-07-2019, 10:22 PM
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2019 Gasser is new with no emissions bull to worry about and can handle the weight


MPGs will be junk 👍🏻
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post #5 of 33 (permalink) Old 12-07-2019, 10:26 PM Thread Starter
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From what I've researched, people are getting 17-ish with that new 8 speed tranny. Is there a tune or anything that will give me a couple more mpg's
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post #6 of 33 (permalink) Old 12-07-2019, 10:34 PM
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Quote:
Originally Posted by twopickles View Post
From what I've researched, people are getting 17-ish with that new 8 speed tranny. Is there a tune or anything that will give me a couple more mpg's
If it was that easy ram would ship it that way from the factory. I’d leave it alone and leave your warranty intact.

All this said, if you only have 36k on your truck why even get another one?


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post #7 of 33 (permalink) Old 12-07-2019, 10:39 PM
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From what I've researched, people are getting 17-ish with that new 8 speed tranny. Is there a tune or anything that will give me a couple more mpg's
Guy at my work has a 19 hemi and is getting 10mpg on the dash. My 19 Cummins says 18 on the dash. Gas is cheaper mostly than diesel.
Bottom line i guess is get what you like
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post #8 of 33 (permalink) Old 12-07-2019, 10:45 PM
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Dash is anything but accurate

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post #9 of 33 (permalink) Old 12-07-2019, 11:00 PM
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Dash is anything but accurate
I know. Mine by hand has been between 16.5-17.5 mpg. Far less than the dash. Just trying to give a base line. So actually on a 6.4 could be between 8-12 mpg
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post #10 of 33 (permalink) Old 12-07-2019, 11:48 PM
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If not towing heavy, then go gasoline.

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post #11 of 33 (permalink) Old 12-08-2019, 12:02 AM
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My 16 6.4 2500 with 4:10 got 16 to 17 all day long on the Hwy, 12 in town driving.


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post #12 of 33 (permalink) Old 12-08-2019, 12:03 AM
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Also remember where your at...this is a Cummins site so there is a bias opinion here.


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