They are currently testing a 2014 Ram 1500 3.0L EcoDiesel and a 2014 Ram 2500 6.7L Cummins (370/800 version). According to their facebook posts, they are averaging 27.9 mpg in the 1500 and over 20 mpg in the 2500 at 75 mph, and have climbed over 5000 feet in elevation during their highway cruise so far. They said they "Aren't trying to maximize mpg, but give you a real world number at 75".Sound promising.

I'm more surprised and impressed at ~20mpg out of the 6.7L ISB than the ~28mpg from the little 3.0L. I expected great economy numbers from the 3.0L so the ~28mpg doesn't shock me.Hats off to Cummins if they've found a way to squeeze a legit 20mpg out of an engine producing 370hp/800tq moving a 7500lb truck at 75mph.

Another reason to get the 3.42's I guess :B

Would be interesting to see similar tests of truck with the optional gear ratios.

ib516 wrote:They are currently testing a 2014 Ram 1500 3.0L EcoDiesel and a 2014 Ram 2500 6.7L Cummins (370/800 version). According to their facebook posts, they are averaging 27.9 mpg in the 1500 and over 20 mpg in the 2500 at 75 mph, and have climbed over 5000 feet in elevation during their highway cruise so far. They said they "Aren't trying to maximize mpg, but give you a real world number at 75".Sound promising.My wife's Fusion doesn't average 28 mpg no way a truck will average that. Unless you are averaging 28 mpg 100% highway without traffic.

The Rams have magical powers. Lets see what gets printed in Diesel Power Mag.

Diesel Power magazine test | Good Sam Community

17 Replies

whsk
Explorer
Oct 25, 2013
short trip today 120 miles gave 16.8mpg-not too bad for a ram 3500 cc lb 4x4 with g56-whsk
chevor
Explorer
Oct 25, 2013
MPG was for the downhill
broark01
Explorer II
Oct 25, 2013
The Rams have magical powers. Lets see what gets printed in Diesel Power Mag.
jspence1
Explorer
Oct 24, 2013
ib516 wrote:
They are currently testing a 2014 Ram 1500 3.0L EcoDiesel and a 2014 Ram 2500 6.7L Cummins (370/800 version).

According to their facebook posts, they are averaging 27.9 mpg in the 1500 and over 20 mpg in the 2500 at 75 mph, and have climbed over 5000 feet in elevation during their highway cruise so far. They said they "Aren't trying to maximize mpg, but give you a real world number at 75".

Sound promising.

My wife's Fusion doesn't average 28 mpg no way a truck will average that. Unless you are averaging 28 mpg 100% highway without traffic.
donn0128
Explorer II
Oct 24, 2013
Would be interesting to see similar tests of truck with the optional gear ratios.
45Ricochet
Explorer
Oct 24, 2013
Another reason to get the 3.42's I guess :B
bmanning
Explorer
Oct 24, 2013
I'm more surprised and impressed at ~20mpg out of the 6.7L ISB than the ~28mpg from the little 3.0L. I expected great economy numbers from the 3.0L so the ~28mpg doesn't shock me.

Hats off to Cummins if they've found a way to squeeze a legit 20mpg out of an engine producing 370hp/800tq moving a 7500lb truck at 75mph.

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Diesel Power magazine test

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