I know the automatics with the DD15 is getting anywheres from 7.0-8.0 mpg. I know because my 2019 gets that. I'm not taking the truck over 70mph though.
Cascadias with dd13 and dd15 mpg
Discussion in 'Ask An Owner Operator' started by pavrom, Dec 16, 2018.
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The last dd15 I was in had the 505 and dt12 with 2.64 rears. With 45k on it and not even broke in it was avg 8.2 doing multiple stop food service
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Are you guys running full locking diffs ?
I don't need mine often, but when I do I am very thankful for them.. -
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I wouldn't have a truck without full lockers though. I view it as the price of 1 hook = defeated entire purpose.ajax1337 and Crude Truckin' Thank this. -
I used to get 7 at 70 mph. I changed out the michillins to Yokohama now 6.6.
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The guy I work for has a '16 Cascadia with a dead axle, DT12, DD15, did 8.xx 3rd quartergokiddogo Thanks this. -
Some trailers pull hard, and affect fuel mileage greatly.
I just got into a 2018 with some miles on it, it is geared to run lower rpms than the 2013, but the same transmission. I'm guessing it will do better for fuel mileage, but those live haul trailers are bad.
The newer ones do better, the 2014s I drove briefly were better than the 2013 I put most of 465k on since it was new.
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