mpg update with spartan 275 - Ford Powerstroke Diesel Forum
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Old 04-30-2011, 05:32 PM Fanatic

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mpg update with spartan 275

Went on a 1000 mile trip and with the 275 here are calculated results
65-70 mph 19 mpg
75-80 mph 17.5 mpg
55-60 mph 23.1

Now this is in canadian gallons 1 canadian gallon = 1.2 u.s gal
08 f350 srw crewcab unloaded with 32 in tires
Speed really kills mpg on these things as aerodynamics are terrible.
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Old 04-30-2011, 05:44 PM

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thanks for the info
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Old 04-30-2011, 06:46 PM
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Those are some pretty good numbers I will admit. I get 18-19 in the 250 tune running 80 mph (Colorado interstate speed limits are 75 MPH!!!) I hear what your saying about speed though. If I would just slow down I could break into the 20's, but then I would be getting passed on the interstate all day. I just cant let that happen.
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