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1794 5.7L versus 5.7L iForce which gets better gas mileage?

Discussion in 'General Tundra Discussion' started by ekbuilder, Oct 9, 2016.

  1. Oct 9, 2016 at 3:41 PM
    #1
    ekbuilder

    ekbuilder [OP] New Member

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    I'm a little old lady that always wanted to own a big truck and I don't know a lot about car mechanics. Went to the Orange County, California New Car Show last week and fell in love with the 1794. I won't be towing anything, just around town miles. I test drove it today and I am certain I want it. It will be the last "big" luxury item I will buy in this lifetime. I've been reading the different Tundra forums and know gas mileage is low. But, even if I get 1-2 more in gas mileage by buying a different engine I'm interested. So what does iForce mean and will I get better or equal gas mileage with an iForce. Thank you in advance.
     
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  2. Oct 9, 2016 at 3:47 PM
    #2
    NMOKTundra

    NMOKTundra Mike Honcho

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    They're the same engines in the 1794 as he other V8s. Only difference is that fancy 1794 badge and beautiful interior. Engine wise, same.
     
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  3. Oct 9, 2016 at 4:09 PM
    #3
    Sean266

    Sean266 #ThinBlueLine Staff Member

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    It's the same engine. Trim level (giggity) is the only difference...
     
  4. Oct 9, 2016 at 4:09 PM
    #4
    joonbug

    joonbug mmmm.....bacon...

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    The only way you'll get better mileage is with the smaller 4.6 liter engine. Unfortunately it isn't offered on the 1794. The 1794 is just a platinum (which is the highest trim) with the special brown leather, wood trim, and some other stuff like 1794 floor mats I believe. You won't get the best gas mileage with the Tundra, but atleast you won't be stranded on the side of the road and the truck's not going to be constantly in the shop. Good luck with your decision.
     
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  5. Oct 10, 2016 at 10:41 AM
    #5
    GNTundra

    GNTundra Troll Sniper

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    Maam I commend you in looking for the facts!! I dont think Ive ever heard of a woman looking for these kinds of answers!! Special lady deserves a special truck!! The 1794 is definately a great choice!!:devil:
     
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  6. Oct 10, 2016 at 11:29 AM
    #6
    csuviper

    csuviper Moderator Staff Member

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    Some Mods :) See build thread for details
    As others have said there are two engines offered in the 2007+ Tundras. 4.6L and 5.7L (besides a limited amount of 4.0L V6)
    It is a difference of 71 hp between them. 5.7L absolutely rocks!!! The 4.6L will get a slightly better MPG.
     
  7. Oct 10, 2016 at 11:33 AM
    #7
    Law323

    Law323 Pray for peace, prepare for war

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    Will you be my mom????
     
  8. Oct 10, 2016 at 11:56 AM
    #8
    TruckyTruck

    TruckyTruck New Member

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    Creepy.... :laugh:
     
  9. Oct 10, 2016 at 12:20 PM
    #9
    RowdyRon

    RowdyRon Not too old to play

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    Thanks a lot Law. We just lost a new member of the forum. LOL!:)
     
  10. Oct 10, 2016 at 12:28 PM
    #10
    RowdyRon

    RowdyRon Not too old to play

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    Mam, have you had the opportunity to drive a Tundra yet? If you are used to driving smaller vehicles, the Tundra can feel a little "large". I commend you for wanting to get a new Tundra and all the reliability that comes with one. Test drive one and see how it fits. If it feels as good to you as it does to folks on this forum, go for it! Best of luck to you on your future purchase!
     
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  11. Oct 10, 2016 at 12:36 PM
    #11
    Law323

    Law323 Pray for peace, prepare for war

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    Hey, my mom drives a smart car and my dad drives a beemer. If it wasn't for my uncles and ONE cousin who drives full sized trucks and diesels, I'd be no better than the average tree hugger!!
     
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  12. Oct 10, 2016 at 12:37 PM
    #12
    csuviper

    csuviper Moderator Staff Member

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    "I test drove it today and I am certain I want it." :D
     
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  13. Oct 10, 2016 at 12:38 PM
    #13
    Law323

    Law323 Pray for peace, prepare for war

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    Or gained a new frequenter. Ive been told I'm easy on the eyes :cool::cool::cool::cool:

    Perspective, it does an ego good LOL
     
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  14. Oct 10, 2016 at 12:59 PM
    #14
    Law323

    Law323 Pray for peace, prepare for war

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    In all seriousness, it's the same engine, just a different interior and a specialized exterior badge. You won't be disappointed in either performance, or reliability. You also won't have to worry about much other than scheduled maintenance. We do have a thread on when to get whatever done (oil, transmission fluid, and what have you) Good luck on your purchase and if there's anything you would like/need to know, we have a great (albeit, somewhat immature at times....*raises hand*) and informed ladies and gents in this forum. Don't hesitate to ask, ma'am.

    Enjoy and try to fight the urge to use cars as speed bumps :thumbsup:
     
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  15. Oct 10, 2016 at 1:19 PM
    #15
    RowdyRon

    RowdyRon Not too old to play

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    Well, I missed that piece of the posting.....I'm going back to sleep now.
     
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  16. Oct 10, 2016 at 1:20 PM
    #16
    RowdyRon

    RowdyRon Not too old to play

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    I just heard that you are easy, period.
     
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  17. Oct 10, 2016 at 1:22 PM
    #17
    Law323

    Law323 Pray for peace, prepare for war

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    LOL!!! Only person I'm easy for is my wife!!! That's how she likes it hahahahaha!
     
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  18. Oct 10, 2016 at 1:37 PM
    #18
    GNTundra

    GNTundra Troll Sniper

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    Screenshot_2016-10-10-15-30-35-1.jpg
     
    Last edited by a moderator: Oct 10, 2016
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  19. Oct 10, 2016 at 1:52 PM
    #19
    Law323

    Law323 Pray for peace, prepare for war

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    I'm easy on the eyes.....never said if they could see or not!
    LOOPHOLE!!
     
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  20. Oct 10, 2016 at 1:54 PM
    #20
    PlatinumPro

    PlatinumPro New Member

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    while i have no data to support this, it's arguable that the 4.6 gets much better mileage than the 5.7.
    my reasoning is that like many here i came from a tacoma and was fairly surprised to find that the mileage wasn't considerably better than the tundra. basically, pedal input has a lot to do with mileage and the fact is that with the tacoma i had to push it a lot harder to get where i wanted to go.
     
  21. Oct 16, 2016 at 11:49 PM
    #21
    geno0506

    geno0506 New Member

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    6d9bf63d1e8817dc75f6185d22d48ac2.jpg
     
  22. Oct 17, 2016 at 6:16 AM
    #22
    aramirez73

    aramirez73 The Ayatollah of Rock n Rolla!

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    Any one on here have the 1794? I am considering trading up jus cause I want the sunroof n seats too! Also can that leather color be toned darker? Bit too orange like U.T. longhorn orange
     
  23. Oct 17, 2016 at 6:28 AM
    #23
    ToyotaTundraMike

    ToyotaTundraMike Not A New Member

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    Exactly. Wish I would have asked more questions on here before I made my purchase. Bone stock the 4.6 may get a little bit better mileage than the 5.7 (which is part of the reason I got it, plus I was impatient to get in another Tundra after selling my 1st gen and came across a killer deal).

    Once you add a leveling kit and some bigger tires that mpg drops quite a bit and you can feel the truck doesnt have as much zip where as the 5.7 would still have plenty and not require as much to get up to speed.


    Lesson learned, my next Tundra will have the 5.7 as well as the captains seats rather than the bench.
     
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  24. Oct 17, 2016 at 9:32 AM
    #24
    Stumpjumper

    Stumpjumper New Member

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    Off topic but speaking of pedals. Does the Tundra have the whimpy little pedal like the Tacoma? I hate the one on my 2013. I would not let them cut or change out my 2009.
     
  25. Oct 17, 2016 at 10:20 AM
    #25
    Law323

    Law323 Pray for peace, prepare for war

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    My truck has plenty of zip at 275/70 AT's. And mpg didn't drop much (about 1 - 2) what size and type tires did you get?

    Don't worry, I wish I had gotten the 5.7 also but needed a truck fast and had a great deal on my tundra like you. Eh. Next time!
     
  26. Oct 17, 2016 at 11:35 AM
    #26
    ToyotaTundraMike

    ToyotaTundraMike Not A New Member

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    I think its these heavy ass Cooper tires that shredded my mpg. Same size as yours but think mine are quite a bit heavier. I lost atleast 2 mpg, but it seems closer to 3. That could also be due to the fact my milage has been mostly stop and go city traffic for the last few months mixed with towing the boat a lot on the weekends.

    It does still have plenty of zip and power for my needs but sometimes I find myself wanting more (mostly when towing the boat or pulling up beside another Tundra at a red light).

    Regardless I think the tradeoff of the 1 mpg difference according to Toyota specs would be worth it for the 5.7. Either way I wouldnt trade my truck for anything other than a 5.7 Tundra.
     
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  27. Oct 17, 2016 at 11:49 AM
    #27
    Law323

    Law323 Pray for peace, prepare for war

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    Agreed!!
     
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  28. Oct 17, 2016 at 1:01 PM
    #28
    Stumpjumper

    Stumpjumper New Member

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    Your MPG drop is more the towing and city than tires. Towing kills the MPGs. Most likely puts you in the 10-12 range on the hwy. City maybe worse. Discount accidently put Goodyear MTRs on my Tacoma when I replaced the OEMs.Hwy mileage dropped about 3 tenths. I ran them for a month until they changed out for Duratracs in load Cs. I bet those MTR Es pushed 60lbs
     
  29. Oct 17, 2016 at 7:18 PM
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    PlatinumPro

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    hahaha, i honestly don't know man. my tacoma was a 2008 trd 6-speed and while i have to agree that the pedals certainly weren't substantial they were small because of the clutch pedal so i don't know that i could have had anything bigger.
     
  30. Oct 17, 2016 at 9:17 PM
    #30
    Chris70

    Chris70 New Member

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    I did notice your wife was cross-eyed, that explains a lot :)
     
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