Anyone using China Iridium spark plugs

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by ozmatt, Feb 8, 2021.

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  1. Skibob

    Skibob Senior Member

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    Best of luck with your Chinese plugs mate. You get the government you vote for.
     
    #21 Skibob, Feb 9, 2021
  2. ozmatt

    ozmatt Active Member

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    Bob, no its not bad :) just being a fool as usual ;)

    CHeers mate, i am pushing away from China Iridium and heading towards local brand Platinum, hopefully the Prius can energize them properly as im sure they wont be as efficient
     
    #22 ozmatt, Feb 9, 2021
  3. dolj

    dolj Senior Member

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    Hey Matt, given what you have said, I would probably just use regular (read cheap) copper spark plugs and change them every 30,0000 km. You'll still be quids ahead. I agree with your assessment that these Prii aren't worth long-life iridium plugs.
     
    #23 dolj, Feb 9, 2021
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  4. ozmatt

    ozmatt Active Member

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    Thanks Dolj :) yeah if I put iridium in this particular old car they would probably end up at the scrap yard with about 96% of their useable life left in them! I can not stand waste hence my obsession for fixing up these old cars in the first place!

    there is a clearance deal on platinums at one of our leading auto parts stores at the moment, is there any reason not to use those over coppers?

    Matt

    Posted via the PriusChat mobile app.
     
    #24 ozmatt, Feb 9, 2021
  5. 05PreeUs

    05PreeUs Senior Member

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    One phrase: "Toyota Maintenance Yootoobe Channel"
     
    #25 05PreeUs, Feb 9, 2021
  6. ozmatt

    ozmatt Active Member

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    Can anyone advise if Bosch WR8DP will work ? i can get these for virtually nada

    looks like the spanner size is 21mm not sure if that will cause an issue or not

    or.. Bosch FR8DC
     
    #26 ozmatt, Feb 9, 2021
    Last edited: Feb 9, 2021
  7. dolj

    dolj Senior Member

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    If you can get them for a similar price as standard copper plug, then why not? Even if they were twice the copper price it would make sense if the car would go another 95,000km.

    I don’t know about your Bosch question. I’ve never used Bosch myself. You would need look up a manufacturers cross reference table to find the equivalent of the OEM Denso or NGK.
     
    #27 dolj, Feb 9, 2021
  8. ozmatt

    ozmatt Active Member

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    Cheers for that dolj :)

    Ended up with two sets, FR7DPX for a couple bucks ea and FR8DC+ for 0.90c ea

    Not optimum head rating on the 7s and may need to adjust the gap but meh, it might compensate for the mileage lol

    Posted via the PriusChat mobile app.
     
    #28 ozmatt, Feb 9, 2021
  9. dolj

    dolj Senior Member

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    No worries.

    It would be useful if you could do a follow-up post on how the car went on those plugs. I, for one, would be interested in that.
     
    #29 dolj, Feb 11, 2021
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  10. ozmatt

    ozmatt Active Member

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    Too easy Dolj definitely will, be quite surprised if these plugs die before the cars do

    Been wondering if the fr7dpx will help a little with engine ping, or just foul. From what i understand of it (Bosch) heat range 7 would be a closer match for a gen3, they are one stage colder than the recommended Bosch plug for a gen2 which is range 8, all other spec seem to be the same from what i can tell, just not iridium.

    FR8DC+ should be fine for a gen2 re-gapped to 1.1mm, all other spec seem to be the same, other than not iridium.

    btw I did not purposely select these plugs they were simply what was dramatically discounted for clearance at our local parts store
     
    #30 ozmatt, Feb 11, 2021
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