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Why does 4.6 only get 1mpg better than 5.7?

Discussion in '3rd Gen Tundras (2014+)' started by tctundra, Apr 11, 2014.

  1. Apr 11, 2014 at 5:55 PM
    #1
    tctundra

    tctundra [OP] New Member

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    I've been trying to figure out why the 4.6 gets only 1 - 2 mpg more than the 5.7. I known they run different rears and looked at the specs on the 6 speed auto trains. Not much different.
     
  2. Apr 11, 2014 at 6:05 PM
    #2
    TruckyTruck

    TruckyTruck New Member

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    That motor has to work a lot harder to get your big ass truck moving than the 5.7 liter
     
    Patriot and MIG like this.
  3. Apr 11, 2014 at 8:13 PM
    #3
    MotoTundra

    MotoTundra Adrenaline Addict

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    x2!
     
  4. Apr 12, 2014 at 4:09 AM
    #4
    Sean266

    Sean266 #ThinBlueLine Staff Member

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  5. Apr 12, 2014 at 7:05 AM
    #5
    JonasSacredTundra

    JonasSacredTundra New Member

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    I agree with TruckyTruck I had a 4.6 in my old truck and the engine had to work a lot harder to move the truck - its just so heavy. I have a buddy who only buys the 4.6 because when he lifts it 10+ inches it gets better gas mileage then the 5.7
     
  6. Apr 12, 2014 at 8:20 PM
    #6
    Sean266

    Sean266 #ThinBlueLine Staff Member

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    Not only that, but say you're cruising @70mph in the 5.7...the 4.6 has to work harder to maintain that speed
     
  7. Apr 14, 2014 at 2:01 PM
    #7
    Krazie Sj

    Krazie Sj Resident Jackass

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    If I ever win the lottery and shoe horn in a 4.6 to my Taco then I'll give you some MPG numbers to go off of. :p
     
    Bob likes this.
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