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P38A Thor engine Spark plugs

Discussion in 'Range Rover' started by TallPaulB, Dec 7, 2018.

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  1. TallPaulB

    TallPaulB Member

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    Hi All,

    I used an NGK part finder online and it recommended the BPR5EIX for the thor engine on LPG, but then a different part finder recommended the BPR6EIX.

    What's the difference between those two? I ordered the 5s before I spotted the other part finder, will the work okay or should I return them and get the 6s?

    (I'm sure someone will point out the fancy iridium plugs aren't worth it, but I'm happy paying the extra for them :) )
     
  2. wammers

    wammers STILL BREATHING. Donater

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    Bit of a change from the days you bought a box of ten plugs for a fiver.
     
    8ha likes this.
  3. Ratae

    Ratae Well-Known Member

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  4. TallPaulB

    TallPaulB Member

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    So the ones I've got are hotter than the recommended BPR6EIX, guess they're going back!

    Cheers all.
     
  5. Ratae

    Ratae Well-Known Member

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    Looking at their site NGK also do a plug specifically for LPG/CNG.
    "LPG LaserLine spark plugs are dual precious metal spark plugs specifically developed for gas-fuelled engines. The combustion of gas is different from the combustion of petrol and, therefore, requires spark plugs which are specially adapted to these conditions. The gas-air mixtures are more difficult to ignite, as more ignition voltage is required and the risk of failure of the ignition coils increases. NGK LaserLine spark plugs come with a lifetime of 60,000 km, clearly outperforming “normal” spark plugs"
    https://www.ngkntk.com/uk/products/spark-plugs/

    Bit more here; https://www.ngkpartfinder.co.uk/files/LPG_info.pdf

    FWIW I've run my dualfuel 3.5EFi RRC mainly on gas for around 20 years on the BPR6E plugs recommended for petrol & not had any issues.
    The other plugs listed for mine are the BPR6EIX and LPG2. The latter on ebay at silly money.
     
    Last edited: Dec 7, 2018
    8ha likes this.
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