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Thread: Spark pluggy goodness

  1. #1
    Senior Member Azmodon's Avatar
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    Spark pluggy goodness

    It only took a little over an hour to get done, I was expecting more of a fight lol but I had been wondering why my fuel efficiency had been dropping. Now I'll see how the Denso 4711's fair.

    Stock plugs new vs used
    Name:  NGK Plugs - New vs Used.jpg
Views: 250
Size:  64.5 KB

    The 4 I pulled out
    Name:  all 4.jpg
Views: 268
Size:  77.6 KB

    Zoomed in on the worst (non-symmetrical balling)
    Name:  Zoomed in 1.jpg
Views: 245
Size:  56.6 KB

    Stock gap is 1.1mm, these were worn down to 1.58 / 1.61 @ ~155K


        __________________________________________

        click to view fuel log View my fuel log 2015 Micra SV automatic: 7.1 L/100 km ... 39.9 mpg (Imp) ... 14.1 km/L ... 33.3 mpg (US) ...


  2. #2
    Administrator MetroMPG's Avatar
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    Wow! That's a lot of electrode wear!

    I bet you noticed a difference in the engine with the new plugs in.

    How many kms on the old ones?

        __________________________________________

        click to view fuel log View my fuel log 2015 Micra S manual: 5.0 L/100 km ... 56.5 mpg (Imp) ... 20.0 km/L ... 47.0 mpg (US) ...


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    Senior Member MrMicra2015's Avatar
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    155k

    whats the recommended interval

    me at 38k
    2015 Micra S (manual)
    no A/C /no power options
    Feb 2015 build
    9,999 purchase price + tax..no additional 1600$ because it was a 2015 purchased in 2016
    so receipt says $8,399....+1600 .... so they look good i guess...for a brand new car!

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    I'm surprised that Nissan Canada does not offer maintenance schedules on their web site. Nissan USA does. Here is link to for a 2015 Versa Note.https://owners.nissanusa.com/content...ance-guide.pdf

    They recommend plug replacement at 105,000 miles (169,000 km)
    Last edited by tomcj2; 07-18-2019 at 07:22 AM.

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    MetroMPG (07-18-2019)

  6. #5
    Administrator MetroMPG's Avatar
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    Quote Originally Posted by MrMicra2015 View Post
    155k
    Thank you. Reading fail on my part.

        __________________________________________

        click to view fuel log View my fuel log 2015 Micra S manual: 5.0 L/100 km ... 56.5 mpg (Imp) ... 20.0 km/L ... 47.0 mpg (US) ...


  7. #6
    Senior Member Azmodon's Avatar
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    as far as mileage goes, since I bought the car (with my driving habits) I always averaged 6.9-7.1 on the computer. It had crept up to 7.4 a few months ago, and within the last 2 weeks had gone to 8.0

    While I was changing my plugs I did notice that I had just enough oil left in the car to just barely touch the end of the dip stick... so... odds are the 7.4 to 8.0 was likely the near total lack of oil in the system, still hunting down where it all went lol, thankfully I have a special lube in there designed to save an engine in just such scenarios.

    Filled back up with oil, just put another 750km on this weekend, averaging 6.4

        __________________________________________

        click to view fuel log View my fuel log 2015 Micra SV automatic: 7.1 L/100 km ... 39.9 mpg (Imp) ... 14.1 km/L ... 33.3 mpg (US) ...


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    I did not know the OEMs were Denso.

    Quote Originally Posted by Azmodon View Post
    It only took a little over an hour to get done, I was expecting more of a fight lol but I had been wondering why my fuel efficiency had been dropping. Now I'll see how the Denso 4711's fair.

    Stock plugs new vs used
    Name:  NGK Plugs - New vs Used.jpg
Views: 250
Size:  64.5 KB

    The 4 I pulled out
    Name:  all 4.jpg
Views: 268
Size:  77.6 KB

    Zoomed in on the worst (non-symmetrical balling)
    Name:  Zoomed in 1.jpg
Views: 245
Size:  56.6 KB

    Stock gap is 1.1mm, these were worn down to 1.58 / 1.61 @ ~155K
    I wonder if you went with Denso again? My 2015 SV is at 43K so i will not have to tackle that for a while. Glad it is not as hard as it looks though.

  9. #8
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    first change on mine was at 150K....average 5.9 mostly rural highway (80-100k/h)....now at 220K on my 2015 bought in 2014. expect that i will be changing them soon again.



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