Best MPG. 12 or 24 valve - Dodge Cummins Diesel Forum
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View Poll Results: Which truck gets better mpg?
1st gen. 12 valve 28 20.14%
2nd gen. 12 valve 62 44.60%
2nd. gen. 24 valve 25 17.99%
3rd. gen. 24valve 24 17.27%
3rd gen. 6.7 0 0%
Voters: 139. You may not vote on this poll

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post #1 of 27 (permalink) Old 10-16-2008, 09:38 PM Thread Starter
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Smile Best MPG. 12 or 24 valve

Which trucks get better mpg? The 12 valve or 24 valve?



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post #2 of 27 (permalink) Old 10-16-2008, 09:39 PM
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i get about 18 in town with my 12valve.

'94 ram 2500 12-valve, auto, soon to be silver
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post #3 of 27 (permalink) Old 10-16-2008, 09:42 PM
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depending on the 24v. from my experience i have a vp 24v and i get about 17-18mpg average, where both my brothers and dad get around 21-22mpg avg in their cr 24v. but ive never had any experience with 12v's

edit: when i say average i mean even mix highway/city.

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post #4 of 27 (permalink) Old 10-16-2008, 09:43 PM
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i get 13 in town if i baby it 1998.5 24v

98.5 3500 Built tranny edge w/attitude, kn cone, intake manifold, stage 5 injectors and some other go fast mods
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post #5 of 27 (permalink) Old 10-16-2008, 09:44 PM
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Im getting 18 on the freeway putt-puttin in the granny lane. or i can get 1.8 letting some soot fly

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post #6 of 27 (permalink) Old 10-16-2008, 10:00 PM
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I get around 18 intown, and thats not really granny driving but also not bagging the crap out of it!

On the highway, if im lucky i see mid 20s, usually in the low 20s as i prefer to get to where im going a little faster!

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post #7 of 27 (permalink) Old 10-16-2008, 11:02 PM
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17ish around down and 22-23 on the highway. My last fill up today was a 21mpg average 50/50 city highway! wewt.

Freinds 98 12V gets nearly the same as i do, hes a little better around town since he is running 285's to my 315's and hes a little better on the freeway since he runs a cap too.

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post #8 of 27 (permalink) Old 10-16-2008, 11:06 PM
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Sorry to skew the results put I just guessed one so I could see the poll results!

But, the one I guessed was the one that is winning currently. 2nd gen 12 valve.
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post #9 of 27 (permalink) Old 10-16-2008, 11:07 PM
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i've read/been told anywhere from 17 18 to 22-24 with the 12v, and a buddy of mine gets 14 around town with his 01 24v.

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post #10 of 27 (permalink) Old 10-17-2008, 07:29 AM
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i am going to say 03-04cr get the best mpg. do simple mods and your in the 24-25mpg range all day long but you have to drive like u have and egg under the throttle pedal

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post #11 of 27 (permalink) Old 10-17-2008, 09:58 AM Thread Starter
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The 96 12 valve I am buying gets 18 in town & 22 highway!


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post #12 of 27 (permalink) Old 10-17-2008, 10:09 AM
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20 ON WVO 23 ON DIESEL

97 long bed auto 2x4 3.50 gear 21mpg on biodiesel no smoke 4 inch turbo back new muffler, I MUST BE GETTING OLD
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driving allmost FREE
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