hey guys just wonderin what everyone is getting with their 6.7 no load and loaded.
I had an 03 3500 6spd man with 410 gears and pullin a 14,000lb fifth wheel i got 19mpg
now with my new ram 3500 6 spd auto and 410 pullin the same amount im only getting 10mpg. any insite

 

Give it time to break in. Also, keep it locked out of 6th gear. It pulls the engine down too much.

 

When I drive my truck, 65mph and keep pretty light on the petal, I can get up to 21mpg. But when I drive like I usually do its more like 16.5... Havent got ahold of a heavy load since I put most on my mods, which are listed in my signature.

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By the way. When my truck was factory, I and and a 04 5.9L pulled 2 5th wheel trailers near the same size for about 200 miles. Mine got 8mpg and the 5.9 got 13mpg the 5.9 was factory with dual wheels and 373 ratio.

 

Cruise control set at 75 MPH for several hundred miles and hand calc'ed I got slightly over 15MPG. I've got the 6 speed manual.



Kris

 

Mine's holding at about 18 on the highway holding a steady 70, 3.73 gears with the 6 speed auto. I've had 10K on the back of it once, and it was around 11 to 12, which was about the same as my old 1500 with the 4.7 when I had 5000 lbs behind it, so with double the load it's about the same. I can't argue... wish it was better but what ya gonna do.

I do hava an S&B intake sitting here waiting to go on hopefully next weekend if I have time, that is supposedly about .5 to 1 mpg depending who you talk to.

 

my08 ram 6.7 dually mega cab, pullin 5500 lb trailer with 5k on trailer averages about 12 mpg at 70. has 130 K miles one it k/n air filter and I have drilled more holes in air filter intake box

 

One word DPF!

 

egr delete helped me out a bunch if you dont mind a code or two i cant find anyway to get rid of them but it runs good still.

 

man i hotshot, i pull a forty foot flatbed, i have an 08 dually with 3:42. the best i get when i pull the trailer is 10 to 11 mpg. no load no trailer, i have gotten up to 16 hand calculated. i dont have any mods on my truck yet. she i s bone stock

 

Yes give it time to break in and you will get start to see better MPG. It will break in sooner if you tow with it more. As for the EGR and DPF delete, I have learned that with the Smarty programmer, It has the software to allow you to take out the DPF and EGR and the computer won't throw any codes. Just a tidbit of info. Hope it helps.