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ShinerBock's avatar
ShinerBock
Explorer
Sep 30, 2020

Fuelly mileage of the big three diesels

It appears the new 10 speed in the Fords made a significant impact in catching up with the Cummins fuel mileage in the 2500's. Although it is still too little info in all of the new 2020 models to tell. It generally starts leveling out after around 50 vehicles and/or 500k miles recorded. Before this, it swings wildly.

Makes me wonder what it will be when they slap the 8 speed in the Ram diesels.

250/2500s
Ford


Ram


GM






350/3500s
Ford


Ram


GM
Tow Vehicles

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  • carringb's avatar
    carringb
    Explorer
    Sep 30, 2020
    It sure would be nice if Fuelly hadan option for towing vs solo driving, since the ratio of those driving types can skew data wildly. Without that, how do we know the Ford is any more efficient, rather than more it being a result of more people buying them as family daily drivers? I suspect the lower Ram 3500 numbers are also simply because they are so popular for hot-shotting, especially with the 14k GVWR, where Ford-driving hot-shotters will just opt for the F450 instead. Anyways... sure would be nice if there was a standardized fuel efficiency or CO2 test for light-medium vehicles, under both empty and full GCWR scenarios....

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