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How to break in a new engine

Discussion in 'General Tundra Discussion' started by Tracker, Jan 22, 2016.

  1. Jan 22, 2016 at 8:18 PM
    #1
    Tracker

    Tracker [OP] New Member

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    Shane
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    Lots of different opinions on proper ways to break in a new engine. Let's begin the discussion. I have always heard to do a 5k mile break in consisting of smooth driving at constant fluctuating speeds with no hard driving. I have also heard to not be shy and lay into it in the early stages. What do you guys have to add :popcorn:
     
  2. Jan 22, 2016 at 8:33 PM
    #2
    matluth

    matluth Fish On!

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  3. Jan 22, 2016 at 10:14 PM
    #3
    Tacogrande

    Tacogrande New Member

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    Toyota says after 6 months or 5000 miles. I have to think that if it was a problem, they would recomend the first oil change sooner????
    I have 4000 miles and honestly i dont think i am worried about it.
     
  4. Jan 23, 2016 at 10:11 AM
    #4
    matluth

    matluth Fish On!

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    I would just drive normally. I wouldn't take it too easy or dog it at first, and stick with Toyota's maintenance schedule. I'd probably check my oil dip stick each week, look over the engine real good for any leaks. Maybe even crawl underneath for a look see too.
     
  5. Jan 23, 2016 at 1:34 PM
    #5
    Sean266

    Sean266 #ThinBlueLine Staff Member

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    I tested it on/off for a couple of weeks to become familiar with its and my comfort levels, then backed off a great deal and drive it like I normally would
     
  6. Jan 23, 2016 at 5:05 PM
    #6
    matluth

    matluth Fish On!

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    Not 100 % on the correct way to break in your 5.7L, but pretty sure this is not the right way: [​IMG]
     
  7. Jan 23, 2016 at 5:15 PM
    #7
    csuviper

    csuviper Moderator Staff Member

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    Some Mods :) See build thread for details
    Stick under 55 for the first 50 miles. Dont accelerate too hard. Drive normal but don't be hard on it. Change the oil and if your really wanting to be protective change differential oil in 500-1000 miles to clear out any metal flakes.
     
    Bob and matluth like this.
  8. Jan 23, 2016 at 5:31 PM
    #8
    matluth

    matluth Fish On!

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    I recently had my rear diff gear oil changed at 63K. I have extensive maintenance records on my truck from day #1. 100% sure that rear diff oil was never changed until recent service. There was barely any noticeable metal fragments on magnetized plug and gear oil was still pretty much clear. Not bad for a 9 year old Tundra. That being said, if I had a new Tundra, I would probably change out the gear oil at 1K for a look see. Doesn't cost that much.
     
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