6.9 Mileage

Discussion in 'Ford Diesel 6.9 | 7.3' started by rocknbronco, Jul 3, 2007.

  1. rocknbronco

    rocknbronco Well-Known Member

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    I'm thinking of looking into a 6.9 and wondering what kind of mileage they get or with an aftermarket turbo kit.
     
  2. vincent jarvey

    vincent jarvey Member

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    Oh I would think mid 20s for mph if you have 3.55 gears and 4x4.:popcorn:
     
  3. rocknbronco

    rocknbronco Well-Known Member

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    Hmmm better than I figured....
     
  4. anwfarms

    anwfarms New Member

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    ive got the 4.10 gears and auto on an idi n/a 7.3 and get almost 18 mpg. the gears hurt me.
     
  5. opusd2

    opusd2 New Member

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    I've got the 4.10 gears and NA engine, it does ok but not as good as it could be doing. Only mid teens for mileage, then again I am still stripping my brother's jury-rigged handiwork off of it.
     
  6. WSTEPHENS

    WSTEPHENS Well-Known Member

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    The 90 7.3 IDI I had was getting 11 mpg after I replaced the injector pump for the highest horse power pump for that engine and it smoked at higher elevation but had more power than the high altutude injector pump. It had a Z5 transmission 4X4 and 4:10 gears.
     

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